HighCVE-2026-92925

Redis: redis: out-of-bounds read via crafted cluster bus packets (CVE-2026-92925)

Published 17.09.2026Last modified 28.10.2026Sources: Ubuntu, SUSE, CVE.org, Debian LTS

What is affected, what to do

A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination.

Update Red Hat Enterprise Linux 10 to version 0:8.0.7-1.el10_1, Red Hat Enterprise Linux 9 to version 0:8.0.7-1.el9_7, Red Hat Enterprise Linux 9 to version 9080020260821173335.9.

Affected: Red Hat Enterprise Linux 10 lt *..0:8.0.7-1.el10_1
Red Hat Enterprise Linux 9 lt *..0:8.0.7-1.el9_7
Red Hat Enterprise Linux 9 lt *..9080020260821173335.9
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions lt *..9040020260917140622.9
Red Hat Enterprise Linux 9.6 Extended Update Support lt *..9060020260917140656.9
Fixed in: Red Hat Enterprise Linux 10 0:8.0.7-1.el10_1
Red Hat Enterprise Linux 9 0:8.0.7-1.el9_7
Red Hat Enterprise Linux 9 9080020260821173335.9
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 9040020260917140622.9
Red Hat Enterprise Linux 9.6 Extended Update Support 9060020260917140656.9

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

Metrics

7.1

Priority

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

Source: NVD, CVSS v3

7.1

CVSS v3

Severity High on the scale from 0 to 10.

Source: Ubuntu, SUSE, CVE.org, Debian LTS

0.7 %

EPSS score

Low — model estimates < 1% exploitation likelihood.

Source: FIRST EPSS, percentile 53.3

Show all metrics

Severity: High
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: 85.78 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: no public PoC known
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: 7.1 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: 7.1
CVSS v4 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: 6.0
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: 0.7 %; Low — model estimates < 1% exploitation likelihood.
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: 53.3; High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
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: —
Published: 17.09.2026
CISA assessment (SSVC): Exploitation: none known · not automatable · Technical impact: partial; Source: CISA Vulnrichment, as of 17 September 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-125

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: High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
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: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
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

A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious packet, leading to an out-of-bounds read when the packet's payload is processed. Successful exploitation of this vulnerability could result in the disclosure of sensitive information or a remote denial of service (DoS).

Source: Ubuntu Security Notices, suse_csaf, cvelistv5, NVD (NIST), Debian LTS Advisories

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
Red Hat	Pen Drive Powered by Red Hat Lightspeed	`—`	—
Red Hat	Red Hat 3scale API Management Platform 2	`—`	—
Red Hat	Red Hat Enterprise Linux 10	`< 0:8.0.7-1.el10_1`	`0:8.0.7-1.el10_1`
Red Hat	Red Hat Enterprise Linux 8	`—`	—
Red Hat	Red Hat Enterprise Linux 9	`< 9080020260821173335.9` `< 0:8.0.7-1.el9_7`	`9080020260821173335.9` `0:8.0.7-1.el9_7`
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	`< 9040020260917140622.9`	`9040020260917140622.9`
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	`< 9060020260917140656.9`	`9060020260917140656.9`
Red Hat	Red Hat Hardened Images	`—`	—

Vendors and products

Affected operating systems

Affected operating systems

Linux	debian	redis	`bookworm`
Linux	ubuntu	redis	`jammy`
Linux	ubuntu	redis	`noble`
Linux	ubuntu	redis	`resolute`

Weakness classes (CWE)

CWE-125Out-of-bounds Read
Base
The product reads data past the end, or before the beginning, of the intended buffer.
Entry at MITRE CWE-125

References & sources

github.comredis/redis/commit/37894faeea11e2db28b9fc2af378a762d2c36523Patch
github.comredis/redis/pull/15263related
github.comredis/redis/releases/tag/8.10.0Vendor advisory
access.redhat.comsecurity/cve/CVE-2026-92925Vulnerability database, x_refsource_REDHAT
bugzilla.redhat.comRHBZ#2535971Issue tracking, x_refsource_REDHAT
access.redhat.comRHSA-2026:69521Vendor advisory, x_refsource_REDHAT
access.redhat.comRHSA-2026:69520Vendor advisory, x_refsource_REDHAT
access.redhat.comRHSA-2026:65120Vendor advisory, x_refsource_REDHAT
access.redhat.comRHSA-2026:3443Vendor advisory, x_refsource_REDHAT
access.redhat.comRHSA-2026:3507Vendor advisory, x_refsource_REDHAT

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).

28.10.2026Record modifiedRed Hat

New references:

Show 3 original changes

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:3443
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:3507

Source identifier: secalert@redhat.com

08.10.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

22.09.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

22.09.2026Record modifiedRed Hat

New references:

https://access.redhat.com/errata/RHSA-2026:65120

Show 2 original changes

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:65120

Source identifier: secalert@redhat.com

21.09.2026Record modifiedRed Hat

New references:

https://access.redhat.com/errata/RHSA-2026:69520

Show 2 original changes

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:69520

Source identifier: secalert@redhat.com

Show 9 older changes

21.09.2026Record modifiedRed Hat

New references:

https://access.redhat.com/errata/RHSA-2026:69521

Show 2 original changes

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>
Reference	added	—	https://access.redhat.com/errata/RHSA-2026:69521

Source identifier: secalert@redhat.com

21.09.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

18.09.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

18.09.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

18.09.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

17.09.2026Record modifiedRed Hat

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/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>

Source identifier: secalert@redhat.com

17.09.2026Record modifiedRed Hat

CVSS V4.0: before AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N, after —

CVSS V3.1: AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Description added or changed

New references:

Show 6 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Description	changed	In Redis community the cluster bus PING/PONG/MEET packet parser validated extension padding and total length but never checked that string-carrying extensions are properly null-terminated, allowing a crafted packet to trigger out-of-bounds reads when the payload is later consumed as a C string. This vulnerability can potentially lead to loss of confidentiality or remote denial of service. Redis Software / Redis Enterprise are not affected by this issue.	A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious packet, leading to an out-of-bounds read when the packet's payload is processed. Successful exploitation of this vulnerability could result in the disclosure of sensitive information or a remote denial of service (DoS).
CVSS	removed	AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	—
CVSS	added	—	AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>
Reference	added	—	https://access.redhat.com/security/cve/CVE-2026-92925
Reference	added	—	https://bugzilla.redhat.com/show_bug.cgi?id=2535971

Source identifier: secalert@redhat.com

17.09.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: none known, automatable: no

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
SSVC assessment	added	—	{"id":"CVE-2026-92925","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"version":"2.0.3","timestamp":"2026-09-17T14:23:53.059508Z"}

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

17.09.2026ReceivedRed Hat

CVSS V4.0: AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Weakness type: CWE-125

Description added or changed

New references:

Show 7 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Description	added	—	In Redis community the cluster bus PING/PONG/MEET packet parser validated extension padding and total length but never checked that string-carrying extensions are properly null-terminated, allowing a crafted packet to trigger out-of-bounds reads when the payload is later consumed as a C string. This vulnerability can potentially lead to loss of confidentiality or remote denial of service. Redis Software / Redis Enterprise are not affected by this issue.
CVSS	added	—	AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness type (CWE)	added	—	CWE-125
Affected versions (publisher)	added	—	New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/92xxx/CVE-2026-92925.json">CVE-2026-92925</a>
Reference	added	—	https://github.com/redis/redis/commit/37894faeea11e2db28b9fc2af378a762d2c36523
Reference	added	—	https://github.com/redis/redis/pull/15263
Reference	added	—	https://github.com/redis/redis/releases/tag/8.10.0

Source identifier: secalert@redhat.com

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