CriticalCVE-2026-8037

Progress LoadMaster Command Injection Vulnerability (CVE-2026-8037)

Published 04.06.2026Last modified 15.10.2026In CISA KEV since 07.08.2026Sources: pwn.watch, CVE.org, BSI

What is affected, what to do

OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an un-authenticated attacker to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in multiple command endpoints

The vulnerability is being actively exploited; treat it as a priority. Update connection_manager_for_objectscale to version 7.2.63.2, ecs_connection_manager to version 7.2.63.2, moveit_web_application_firewall to version 7.2.63.2. Immediate actions, mitigation and detection rules are in the runbook below.

Affected: Progress Software LoadMaster gte V7.2.60.0..*
Progress Software LoadMaster gte V7.2.54.12..*
Progress Software ECS Connections Manager gte V7.2.60.0..*
Progress Software Object Scale Connection Manager gte V7.2.60.0..*
Progress Software MOVEit WAF gte V7.2.60.0..*

Not sure whether and how you are affected? Ask a question about this vulnerability

Metrics

9.8

Priority

XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

Source: NVD, CVSS v3

9.6

CVSS v3

Severity Critical on the scale from 0 to 10.

Source: pwn.watch, CVE.org, BSI

99.79 %

EPSS score

High — model estimates ≥ 50% chance of real-world exploitation within 30 days.

Source: FIRST EPSS, percentile 99.96

Show all metrics

Severity: Critical
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 246.15 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: actively exploitedSource: VulnCheck KEV (opens in a new tab) How we classify
XIEM Effective CVSS XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command. Read in glossary: 9.8 Methodology
CVSS v3 CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions. Read in glossary: 9.6
EPSS score The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“. Read in glossary: 99.79 %; High — model estimates ≥ 50% chance of real-world exploitation within 30 days.
EPSS percentile The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking. Read in glossary: 99.96; Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: Actively exploited
Published: 04.06.2026
In CISA KEV since The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: 07.08.2026
CISA assessment (SSVC): Exploitation: active · not automatable · Technical impact: total; Source: CISA Vulnrichment, as of 1 October 2026
CWE CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect. Read in glossary: CWE-77

Response and mitigation

Why act now?

Prioritisation rationale

This is network-reachable, unauthenticated, low-complexity command injection requiring no user interaction. It yields full control of an appliance that sits on the perimeter by design, holds TLS keys and sees traffic for critical applications, and its exploitation likelihood is among the highest of any CVE. Edge devices like ADCs are favoured for initial access, persistence and credential harvesting precisely because they rarely run EDR. CISA does not flag known ransomware use, but that does not lower urgency where the management interface is exposed. If the WUI/API is internet-reachable, treat this as top priority with an emergency change within hours. Where management access is strictly segmented, patching within a few days is defensible, but a compromise assessment is still warranted.

01
Runbook step 1
Immediate response (0-24 h)
- Inventory: Enumerate every Progress ADC instance (LoadMaster hardware/VLM/cloud, ECS Connection Manager, Connection Manager for ObjectScale, MOVEit WAF) with its firmware version. Affected versions per the context include V7.2.45.12, V7.2.60.0 and the range from 7.2.55.0 up to, but not including, 7.2.63.2.
- Patch: Upgrade LoadMaster, ECS Connection Manager and Connection Manager for ObjectScale to 7.2.63.2. For MOVEit WAF and the 7.2.45.x (LTSF) branch, a patch is available from the vendor; look up the exact version in the vendor advisory.
- Lock down management access now: If the web UI (WUI) or REST API is reachable from the internet or from non-admin networks, restrict it with an upstream firewall/ACL to the admin network or jump host. Do this regardless of when you can patch.
- Disable the API where unused: Turn off the API interface under Remote Access in LoadMaster unless automation (Ansible, orchestration) depends on it.
- Check for compromise before patching: Preserve the config backup and syslog export as evidence, then patch. If you find signs of exploitation, treat appliance credentials, API keys and the TLS private keys held on the box (SSL offload) as compromised and rotate them.
- Reporting: For a confirmed compromise, the NIS2 24-hour early-warning deadline applies. Classify the incident ticket accordingly.
02
Runbook step 2
Mitigation layers
- Network segmentation: Separate the management plane (WUI/API) from the data path. Bind LoadMaster admin access to a dedicated management interface and permit it only from the admin VLAN or via PAM/jump host.
- Egress filtering: Restrict outbound traffic from the appliance management IP to what it needs: NTP, syslog, DNS and vendor update servers. Deny and log everything else. This kills reverse shells and second-stage downloads.
- IPS/WAF rule: Where management traffic passes a reverse proxy or NGFW with TLS inspection, block requests to API paths (e.g. /access/) whose parameters contain shell metacharacters: ;, |, `, $(, && and their URL-encoded forms %3B, %7C, %60, %24%28. Also enable vendor-supplied signatures for this CVE on your IPS (Suricata/Snort/NGFW).
- IAM/least privilege: Minimise local admin accounts and give the default bal account a strong password, or move to central auth (RADIUS/LDAP with MFA enforced at the jump host). Because the bug is pre-auth, this limits blast radius only, not exploitability.
- Configuration hardening: Disable unused remote services (SSH access, API, session-management features). Enable syslog forwarding to the SIEM so appliance events survive tampering on the device.
03
Runbook step 3
Detection rules
- Management-interface web traffic (Zeek http.log, proxy/NGFW logs): Look for API endpoint URIs or parameters containing shell metacharacters. SPL: index=proxy dest_ip=<LM_MGMT_IP> uri_path="/access/*" | regex uri_query="(%3B|%7C|%60|%24%28|;|\||\$\()"
- Anomalous appliance egress (NetFlow/Zeek conn.log/firewall): Watch for new destinations, connections to ports such as 4444/1337/8080, or outbound HTTP(S) to unknown hosts. KQL: CommonSecurityLog | where SourceIP == "<LM_MGMT_IP>" and DestinationIP !in (allowlist) | summarize count() by DestinationIP, DestinationPort
- API hits from unexpected sources: Flag any WUI/API request from outside the admin network, especially unauthenticated requests returning HTTP 200 on command endpoints. Sigma shape: logsource: proxy, selection: dst_ip|cidr: <LM_MGMT> AND src_ip|cidr not: <ADMIN_NET>, level: high.
- Forwarded appliance syslog: Watch for unexpected config changes, new user accounts, SSH being enabled, reboots or firmware actions outside maintenance windows, and gaps in the log stream that may indicate tampering.
- Downstream indicators: Watch for lateral connections from the appliance IP to internal servers (SMB/445, RDP/3389, SSH/22) that don't match normal health-check patterns.

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: Actively exploited: treat the vulnerability as a priority in vulnerability handling under Art. 21(2)(e) NIS2. If it is exploited in your environment, check the reporting obligation under Art. 23 (early warning within 24 hours).
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: Since 11.09.2026, manufacturers of affected products with digital elements must report actively exploited vulnerabilities under Art. 14 CRA, with an early warning within 24 hours via ENISA's single reporting platform.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Source: pwn.watch, cvelistv5, NVD (NIST), CISA KEV Catalog, CVE.org (MITRE), BSI WID Portal, BSI CSAF

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
Progress Software	ECS Connections Manager	`≥ V7.2.60.0`	—
Progress Software	LoadMaster	`≥ V7.2.60.0` `≥ V7.2.54.12`	— —
Progress Software	MOVEit WAF	`≥ V7.2.60.0`	—
Progress Software	Object Scale Connection Manager	`≥ V7.2.60.0`	—
progress	connection_manager_for_objectscale	`< 7.2.63.2`	`7.2.63.2`
progress	ecs_connection_manager	`< 7.2.63.2`	`7.2.63.2`
progress	moveit_web_application_firewall	`< 7.2.63.2`	`7.2.63.2`
Kemp	LoadMaster GA	`< 7.2.63.2`	`7.2.63.2`
Kemp	LoadMaster LTSF	`< 7.2.54.18`	`7.2.54.18`

Vendors and products

Affected operating systems

Affected operating systems

Other	progress	loadmaster	—

Weakness classes (CWE)

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
Class
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Entry at MITRE CWE-77

Public exploit references

Publicly reported proof-of-concepts, exploit modules and detection templates for this vulnerability. NEOSEC links to the original sources only and does not provide any exploit code.

Public exploit references

CISA KEV Catalog	CISA Known Exploited Vulnerability (opens in a new tab)cisa.gov	actively exploited	07.08.2026
Reference tagged as exploit	labs.watchtowr.com (opens in a new tab)	PoC (publicly reported)reported, not verified	—
PoC-in-GitHub (nomi-sec)	CVE-2026-8037-POC (opens in a new tab)github.com	PoC (publicly reported)reported, not verified	09.07.2026
PoC-in-GitHub (nomi-sec)	CVE-2026-8037 (opens in a new tab)github.com	PoC (publicly reported)reported, not verified	30.06.2026

References & sources

community.progress.comProgress LoadMaster — CVE-2026-8037Vendor advisory, pwn-watch
labs.watchtowr.comenterprise-tech-in-shell-out-progress-kemp-loadmaster-uninitial…Third-party advisory, Exploit
esentire.comsecurity-advisories/progress-kemp-loadmaster-vulnerability-targ…media-coverage
cisa.govknown-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037government-resource
pwn.watchpwn.watch: Progress LoadMaster: Progress LoadMaster Command Injection Vulnerabilitypwn-watch
NVD (NIST)NVD: CVE-2026-8037pwn-watch
cisa.govCISA Known Exploited Vulnerabilities Catalogpwn-watch

Changes to this CVE

Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

15.10.2026Record modifiedprogress.com

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/8xxx/CVE-2026-8037.json">CVE-2026-8037</a>

Source identifier: security@progress.com

01.10.2026Record modifiedprogress.com

New references:

https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-June-2026-CVE-2026-8037-CVE-2026-33691

Show 3 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-June-2026-CVE-2026-8037-CVE-2026-33691
Reference	removed	https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-June-2026-CVE-2026-8037-CVE-2026-33691	—
Reference type	removed	https://community.progress.com/s/article/LoadMaster-Critical-Security-Bulletin-June-2026-CVE-2026-8037-CVE-2026-33691 Types: Patch, Vendor Advisory	—

Source identifier: security@progress.com

01.10.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: active, automatable: no

New references:

Show 11 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://labs.watchtowr.com/enterprise-tech-in-shell-out-progress-kemp-loadmaster-uninitialized-heap-to-pre-auth-rce-cve-2026-8037/
Reference	added	—	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037
Reference	added	—	https://www.esentire.com/security-advisories/progress-kemp-loadmaster-vulnerability-targeted-cve-2026-8037
Reference	removed	https://labs.watchtowr.com/enterprise-tech-in-shell-out-progress-kemp-loadmaster-uninitialized-heap-to-pre-auth-rce-cve-2026-8037/	—
Reference	removed	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037	—
Reference	removed	https://www.esentire.com/security-advisories/progress-kemp-loadmaster-vulnerability-targeted-cve-2026-8037	—
Reference type	removed	https://labs.watchtowr.com/enterprise-tech-in-shell-out-progress-kemp-loadmaster-uninitialized-heap-to-pre-auth-rce-cve-2026-8037/ Types: Exploit, Patch, Third Party Advisory	—
Reference type	removed	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037 Types: US Government Resource	—
Reference type	removed	https://www.esentire.com/security-advisories/progress-kemp-loadmaster-vulnerability-targeted-cve-2026-8037 Types: Third Party Advisory	—
SSVC assessment	removed	{"id":"CVE-2026-8037","role":"CISA Coordinator","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-06-04T00:00:00+00:00"}	—
SSVC assessment	added	—	{"id":"CVE-2026-8037","role":"CISA Coordinator","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-10-01T17:36:56.394082Z"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

10.08.2026NVD analysis modifiedNVD

Product mapping changed:

Progress Connection Manager for ObjectScale (before 7.2.63.2)
Progress ECS Connection Manager (before 7.2.63.2)
Progress LoadMaster (before 7.2.54.18; 7.2.55.0 – before 7.2.63.2)
Progress MOVEit Web Application Firewall (WAF) (before 7.2.63.2)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Product configuration	changed	OR cpe:2.3:a:progress:connection_manager_for_objectscale::::::::* versions up to (excluding) 7.2.63.2 cpe:2.3:a:progress:ecs_connection_manager::::::::* versions up to (excluding) 7.2.63.2 cpe:2.3:o:progress:loadmaster::::::::* versions up to (excluding) 7.2.54.18 cpe:2.3:o:progress:loadmaster::::::::* versions from (including) 7.2.55.0 up to (excluding) 7.2.63.2	OR cpe:2.3:a:progress:connection_manager_for_objectscale::::::::* versions up to (excluding) 7.2.63.2 cpe:2.3:a:progress:ecs_connection_manager::::::::* versions up to (excluding) 7.2.63.2 cpe:2.3:o:progress:loadmaster::::::::* versions up to (excluding) 7.2.54.18 cpe:2.3:o:progress:loadmaster::::::::* versions from (including) 7.2.55.0 up to (excluding) 7.2.63.2 cpe:2.3:a:progress:moveit_web_application_firewall::::::::* versions up to (excluding) 7.2.63.2

Source identifier: nvd@nist.gov

08.08.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: proof of concept, automatable: no

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
SSVC assessment	changed	{"id":"CVE-2026-8037","role":"CISA Coordinator","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-08-07T17:45:04.515830Z"}	{"id":"CVE-2026-8037","role":"CISA Coordinator","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-06-04T00:00:00+00:00"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Show 3 older changes

07.08.2026NVD analysis modifiedNVD

New references:

Show 2 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference type	added	—	CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037 Types: US Government Resource
Reference type	added	—	CISA-ADP: https://www.esentire.com/security-advisories/progress-kemp-loadmaster-vulnerability-targeted-cve-2026-8037 Types: Third Party Advisory

Source identifier: nvd@nist.gov

07.08.2026CISA KEV entry updated9119a7d8…
4 individual changes: Date Added, Due Date, Required Action, Vulnerability Name
Show 4 original changes
Individual changes of this event as published by NVD
Type Action Before After
Date Added added
—
2026-08-07
Due Date added
—
2026-08-07
Required Action added
—
2026-08-07
Vulnerability Name added
—
2026-08-07
Source identifier: 9119a7d8-5eab-497f-8521-727c672e3725

Individual changes of this event as published by NVD
Type	Action	Before	After
Date Added	added	—	2026-08-07
Due Date	added	—	2026-08-07
Required Action	added	—	2026-08-07
Vulnerability Name	added	—	2026-08-07

07.08.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: active, automatable: no

New references:

Show 3 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Reference	added	—	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8037
Reference	added	—	https://www.esentire.com/security-advisories/progress-kemp-loadmaster-vulnerability-targeted-cve-2026-8037
SSVC assessment	changed	{"id":"CVE-2026-8037","role":"CISA Coordinator","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-06-04T00:00:00+00:00"}	{"id":"CVE-2026-8037","role":"CISA Coordinator","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-08-07T17:45:04.515830Z"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

One NVD translation into another language is hidden.

Linked advisories

Progress Kemp LoadMaster Flaw Exploited; SonicWall SMA1000 Flaws Exploited in RansomwareSANS NewsBites10.08.2026

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<a href="https://intel.neosec.eu/en/cve/CVE-2026-8037"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-8037.svg?lang=en" alt="CVE-2026-8037 – NEOSEC Intel" height="20"></a>

What is affected, what to do

Metrics

Response and mitigation

Prioritisation rationale

Immediate response (0-24 h)

Mitigation layers

Detection rules

Detection rules

Classification under NIS2 and CRA

Description

Affected products

Vendors and products

Affected operating systems

Weakness classes (CWE)

Public exploit references

References & sources

Changes to this CVE

Linked advisories