TeamViewer Remote Management - Monitoring: Improper Authentication (CVE-2026-92376)
Published Last modified Sources: pwn.watch, CVE.org
What is affected, what to do
Improper authentication in the inter-process communication (IPC) mechanism of TeamViewer Remote Management Monitoring for Windows prior to version 26.10.1 allows a local authenticated attacker with low privileges to impersonate the IPC broker and cause the Monitoring service to execute arbitrary code with NT AUTHORITY\SYSTEM privileges, resulting in local privilege escalation.
Update TeamViewer Remote Management - Monitoring to version 26.10.1.
- Affected
- TeamViewer Remote Management - Monitoring
lt *..26.10.1
- TeamViewer Remote Management - Monitoring
- Fixed in
- TeamViewer Remote Management - Monitoring
26.10.1
- TeamViewer Remote Management - Monitoring
Not sure whether and how you are affected? Ask a question about this vulnerability
Metrics
7.8
Priority
XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.
Source: Vendor (CNA), CVSS v3
7.8
CVSS v3
Severity High on the scale from 0 to 10.
Source: pwn.watch, CVE.org
—
EPSS score
No value is available for this vulnerability.
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- 69.00 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- 7.8 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- 7.8
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
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-287
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
Improper authentication in the inter-process communication (IPC) mechanism of TeamViewer Remote Management Monitoring for Windows prior to version 26.10.1 allows a local authenticated attacker with low privileges to impersonate the IPC broker and cause the Monitoring service to execute arbitrary code with NT AUTHORITY\SYSTEM privileges, resulting in local privilege escalation.
Source: pwn.watch, cvelistv5, NVD (NIST), CVE.org (MITRE)
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| TeamViewer | Remote Management - Monitoring |
|
|
Vendors and products
Weakness classes (CWE)
CWE-287Improper Authentication
Class
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Entry at MITRE CWE-287
References & sources
- pwn.watchpwn.watch: TeamViewer 15.83 fixes remote code execution in its clients and SYSTEM/root escalation in Remote Management add-onspwn-watch
- teamviewer.comTV-2026-1011: Security Update for Vulnerabilities in TeamViewer Clientspwn-watch
- teamviewer.comTV-2026-1012: Security Update for TeamViewer Remote Management Add-onspwn-watch, Vendor advisory
- teamviewer.comTeamViewer security bulletinspwn-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).
Receivedteamviewer.com
CVSS V3.1: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type: CWE-287
Description added or changed
Show 5 original changes
Individual changes of this event as published by NVD Type Action Before After Description added —Improper authentication in the inter-process communication (IPC) mechanism of TeamViewer Remote Management Monitoring for Windows prior to version 26.10.1 allows a local authenticated attacker with low privileges to impersonate the IPC broker and cause the Monitoring service to execute arbitrary code with NT AUTHORITY\SYSTEM privileges, resulting in local privilege escalation.CVSS added —AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness type (CWE) added —CWE-287Affected versions (publisher) added —New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/92xxx/CVE-2026-92376.json">CVE-2026-92376</a>Reference added —https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1012/Source identifier: psirt@teamviewer.com
Embed badge
Show the severity and KEV status of this vulnerability on your site – with a link back here. The image is updated hourly.
<a href="https://intel.neosec.eu/en/cve/CVE-2026-92376"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-92376.svg?lang=en" alt="CVE-2026-92376 – NEOSEC Intel" height="20"></a>