VulnSocial

CVE-2026-19042Patch

LOWCVSS 8.8 · HIGH

Signal is active with 5 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A command injection vulnerability in TeamViewer Full Client and Host for Linux prior to version 15.81.5 allows a remote attacker to execute arbitrary commands in the context of the current user via a specially crafted URL sent through the out-of-session chat feature. Exploitation requires user interaction by clicking the malicious link.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-78

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 8 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 6 signals
  • Technical details provided in 8 signals
  • Disclosure: 2 classified signals
  • Peaked at 5 mentions on most recent observed day (2026-08-27)
  • 8 total mentions across 2 days

Deep dive

Activity timeline8 mentions / 2d
01345Mentions · 2026-08-26: 3Mentions · 2026-08-27: 5Patch / Workaround · 2026-08-26: 1Patch / Workaround · 2026-08-27: 5Technical Details · 2026-08-26: 3Technical Details · 2026-08-27: 508-2608-27
Signal classification2 categories
Patch
675.0%
Disclosure
225.0%
Referenced assets7 URLs
Classification over time
DateTotalLabels
2026-08-263
Disclosure2Patch1
2026-08-275
Patch5
Full discourse8 posts
  • Daily CyberSecurity@Daily_CyberSec
    Patch

    TeamViewer patched CVE-2026-19042, a Linux command injection flaw, and a path traversal bug. Both TeamViewer vulnerabilities enable code execution. #TeamViewer #CommandInjection #CVE202619042 #PathTraversal #RCE #InfoSec https://securityonline.info/teamviewer-vulnerabilities-command-injection/

    Post summary

    TeamViewer has patched CVE-2026-19042, a Linux command injection and path traversal flaw that enabled remote code execution.

    0401031.4K
    13.0K followersView on X
  • ThreatWire@ThreatWire_
    Patch

    🚨 HIGH: TeamViewer patched CVE-2026-19042, a Linux command injection vulnerability that can lead to remote code execution through malicious links delivered via out-of-session chat. A second flaw, CVE-2026-16444, involves improper file-path validation in TeamViewer Desktop Clients. 🔴 Update TeamViewer to the latest version. 🔗 https://www.teamviewer.com/en-us/resources/trust-center/security-bulletins/ #TeamViewer #CVE #RCE #CommandInjection #CyberSecurity #Infosec

    Post summary

    TeamViewer has patched two CVEs—CVE-2026-19042, a Linux command‑injection that could allow remote code execution, and CVE-2026-16444 involving improper file‑path validation—prompting users to update to the latest version.

    100631.4K
    1.7K followersView on X
  • ThreatWire@ThreatWire_
    Patch

    @toolshed_labs Correct, thanks for pointing that out. TeamViewer’s own security bulletins confirm CVSS 8.8 (High) for CVE-2026-19042, and both CVE-2026-19042 and CVE-2026-16444 are fixed in version 15.81.5. Appreciate the clarification.

    Post summary

    TeamViewer confirms CVE‑2026‑19042 is high severity and notes that both CVE‑2026‑19042 and CVE‑2026‑16444 are addressed in version 15.81.5.

    00020618
    1.7K followersView on X
  • Rıdvan Yağlı@ridvanyagli
    Patch

    🔴 TeamViewer'da yüksek riskli iki güvenlik açığı yamalandı. Linux istemcilerini etkileyen CVE-2026-19042 (CVSS 8.8), out-of-session chat üzerinden gönderilen kötü amaçlı bir bağlantının kullanıcı tarafından açılmasıyla komut çalıştırmaya ve RCE'ye yol açabiliyor. Ayrıca CVE-2026-16444 adlı dosya yolu doğrulama açığı da giderildi. TeamViewer kullananların en kısa sürede güncelleme yapması öneriliyor. https://www.teamviewer.com/en-us/resources/trust-center/security-bulletins/

    Post summary

    TeamViewer announced patches for two high‑risk CVEs—CVE‑2026‑19042 (RCE) and CVE‑2026‑16444 (path‑validation)—and urged users to update immediately.

    00010282
    1.9K followersView on X
  • lee1981@lee1981b
    Patch

    🔥 CyberForge CVE of the Day #035 🚨 CVE-2026-19042 — TeamViewer Linux Chat-Link Command Injection TeamViewer patched command injection in Linux Full Client/Host. A crafted out-of-session chat URL can run commands as the current user after a click. The sender must be an allowed contact, or outsider chat must be enabled—off by default. 🔑 Key details: ⭐ Severity: High — CVSS 3.1: 8.8 🧠 Weakness: CWE-78 — OS Command Injection 🎯 Target: TeamViewer Full Client/Host for Linux 🔓 Authentication: None on the victim endpoint 🌐 Attack vector: Network 👆 User interaction: Required — link click ⚔️ Impact: Current-user RCE; High C/I/A 🛡️ Fix: 15.81.5; V14 14.7.48838; V13 13.2.153978 🚫 Exploitation/PoC: None publicly confirmed 📋 CISA KEV: Not listed — checked 2026-08-27 📊 CISA SSVC: None / Not automatable / Total impact ⚠️ Why it matters: A link inside trusted support software may appear safer than email. Execution could expose documents, browser data, SSH keys, cloud credentials and internal resources available to that user. 🛡️ Affected Software & Versions: Linux Full Client and Host <15.81.5 Legacy V14 <14.7.48838 Legacy V13 <13.2.153978 Windows, macOS and QuickSupport are not listed 🧠 The practical attack surface: This is not no-click, internet-wide or automatic root compromise. Delivery needs an allowed chat route and execution needs a click. The URL format is undisclosed, so patch rather than trust speculative signatures. 🔥 CyberForge verdict: High priority for Linux support, developer and admin endpoints. A required click limits mass automation, but trusted-chat abuse plus command execution makes prompt patching essential. 🔗 Full visual/vendor advisory: https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1009/ 🔗 Full vulnerability details: https://nvd.nist.gov/vuln/detail/CVE-2026-19042 #CyberSecurity #CVE #TeamViewer #Linux #RCE #CyberForge

    Post summary

    CVE-2026-19042 is a high‑severity OS command injection in TeamViewer Linux clients that can be triggered via a crafted chat link requiring user interaction; the issue is fully patched in recent releases, with no publicly confirmed PoC or active exploitation.

    00010163
    564 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-19042 A command injection vulnerability in TeamViewer Full Client and Host for Linux prior to version 15.81.5 allows a remote attacker to execute arbitrary commands in the … https://www.cve.org/CVERecord?id=CVE-2026-19042

    Post summary

    The text announces a command injection vulnerability (CVE-2026-19042) in TeamViewer Linux client and host before version 15.81.5, allowing remote attackers to execute arbitrary commands.

    000011.1K
    58.0K followersView on X
  • HOL@HashgraphOnline
    Patch

    Fix: upgrade TeamViewer Full Client and Host for Linux to 15.81.5. Same train also closes a sibling file-write issue that needs an already-open remote session. https://hol.org/blog/cve-2026-19042-teamviewer-linux-chat-link-command-injection CVE-2026-19042

    Post summary

    The notice announces a patch (v15.81.5) for TeamViewer Linux to address CVE‑2026‑19042 command injection and a sibling file‑write issue that requires an open remote session. No evidence of exploitation or PoC is disclosed.

    00000119
    18.6K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-19042 A command injection vulnerability in TeamViewer Full Client and Host for Linux prior to version 15.81.5 allows a remote attacker to execute arbitrary commands in the … https://www.cve.org/CVERecord?id=CVE-2026-19042 ----- Traducción: CVE-2026-19042 Una… https://infoflow.cloud`

    Post summary

    The tweet reports CVE‑2026‑19042, a command injection flaw in TeamViewer Linux that allows remote command execution.

    0000034
    102 followersView on X

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