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NVD description
Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior Version 15.81.5 allows an authenticated remote session participant to write files to unintended locations on the local file system via file transfer or virtual file clipboard mechanisms. An attacker can leverage this behavior to achieve arbitrary file write and potentially execute code with the privileges of the affected user.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-08-26 | 2 | Disclosure1General1 |
| 2026-08-27 | 6 | Patch6 |
| 2026-08-28 | 1 | Patch1 |
| 2026-08-29 | 2 | Patch2 |
| 2026-09-04 | 1 | Patch1 |
Vulnerabilidades de TeamViewer permiten ejecución remota de código TeamViewer ha corregido la vulnerabilidad de severidad alta CVE-2026-16444 https://blog.elhacker.net/2026/08/vulnerabilidades-de-teamviewer-permiten.html
Post summary
TeamViewer announced the patching of the high‑severity CVE‑2026‑16444, which previously allowed remote code execution.
🚨 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 released patches for CVE‑2026‑19042 (Linux command injection/remote code execution) and CVE‑2026‑16444 (improper file‑path validation) and recommends users update to the latest version to mitigate the vulnerabilities.
TeamViewerは、認証済みのリモートセッション参加者が受信側端末の意図しない場所へファイルを書き込み、ユーザー権限でコード実行につなげられる脆弱性「CVE-2026-16444」を修正した問題だ。 問題はTeamViewer Desktop Clientのファイルパス検証不備にあり、ファイル転送機能や仮想ファイルクリップボードで送られるファイル名にパストラバーサル文字列を含めると、本来の保存先以外へファイルを書き込める。 悪意ある実行ファイル、スクリプト、ショートカット、設定ファイルなどを後から利用者や別プロセスが参照する場所へ配置できれば、コード実行につながる可能性がある。攻撃にはTeamViewerセッションへの認証済み参加と利用者の操作が必要である。 影響するのはWindows、macOS、Linux向けFull Client、Host、QuickSupportの15.81.5未満。Windows 7/8向けやTeamViewer 14、13にも影響し、それぞれ修正版が公開された。TeamViewerは実際の悪用や事前の公開を確認していないとしている。 https://cybersecuritynews.com/multiple-teamviewer-vulnerability/
Post summary
The article reports that TeamViewer has released a patch for CVE-2026-16444, a path‑traversal flaw that lets an authenticated remote session participant write files to unintended locations. No real‑world exploitation has been observed—or confirmed—yet.
@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 reports a high‑severity CVE-2026-19042 with CVSS 8.8 and confirms that both CVE-2026-19042 and CVE-2026-16444 have been remediated in version 15.81.5.
TeamViewer Users: Update Now CVE-2026-16444 exposes a high-severity path-traversal flaw that could lead to malicious file writes and potential code execution. Update TeamViewer and strengthen MFA and access controls. #CyberNexoraNews #Cybersecurity #TeamViewer #CVE202616444 https://t.co/khEDNeVbYq
Post summary
The tweet alerts TeamViewer users to CVE‑2026‑16444, a high‑severity path‑traversal vulnerability, and urges them to update the software and reinforce MFA and access controls.
🔴 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 has patched two high‑risk CVEs, including CVE‑2026‑19042 which allows RCE through a malicious chat link and CVE‑2026‑16444, a file‑path validation flaw; users are advised to update immediately.
TeamViewer の脆弱性 CVE-2026-16444 が FIX：リモート・コード実行に至る恐れ https://iototsecnews.jp/2026/08/27/multiple-teamviewer-vulnerabilities-enable-remote-code-execution-attacks/ TeamViewer のリモート接続機能の悪用を可能にする、パス検証不足の脆弱性が発見されました。この脆弱性を悪用する、外部からのパス・トラバーサル攻撃により、任意のファイルが配置される恐れがあります。脆弱性 CVE-2026-16444 の影響として、重要データの意図しない置換／権限に応じた命令の任意実行／永続的な侵入経路の確立／システム情報の漏洩などが生じる可能性があります。対策として、影響を受けるコンポーネントの最新版への即時アップデート／アクセスログの定期的監視／不要なデータ移動機能の制限／多要素認証の強制適用などの対応が推奨されます。 #CVE202616444 #TeamViewer #Vulnerability
Post summary
The article reports the discovery of TeamViewer CVE-2026-16444, a path‑traversal flaw that can lead to remote code execution, and urges users to update to the latest version and apply recommended mitigations.
Si usas TeamViewer, merece la pena actualizarlo hoy. La CVE-2026-16444 afecta a la ejecución remota de código, así que no es de esas actualizaciones para dejar pendientes. ¿Tienes controlado qué versiones hay instaladas en tus equipos? #Ciberseguridad
Post summary
The post alerts TeamViewer users to CVE-2026-16444, a remote code execution flaw, and urges them to update to a patched version.
CVE-2026-16444 — Vulnerability Details Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior to version 15.81.5 may allow an authenticated remote session participant to write files to unintended locations on the local file system through file transfer or virtual file clipboard mechanisms. An attacker could potentially leverage this behavior for arbitrary file writes and code execution with the privileges of the affected user. Recommended actions: ✅ Update TeamViewer Desktop Clients to version 15.81.5 or later ✅ Limit remote session file transfer and clipboard permissions where possible ✅ Review remote access policies and session logs ✅ Monitor endpoints for unusual file write activity ✅ Apply least-privilege access controls for users and support sessions Remote access tools are essential—but they must be secured, monitored, and updated. Vistem Solutions helps organizations strengthen cybersecurity, reduce risk, and stay resilient against emerging threats. 📩 Need help assessing your exposure? Contact us: sales@vistem.com #Cybersecurity #CVE #TeamViewer #VulnerabilityManagement #PatchManagement #RemoteAccessSecurity #CyberResilience #ITSecurity #VistemSolutions #SecureInnovation https://app.opencve.io/cve/CVE-2026-16444?utm_source=in_page&utm_medium=Vistem+Solutions%2C+Inc.&utm_campaign=publer
Post summary
The post outlines a path‑traversal flaw in older TeamViewer Desktop Clients, recommends updating to version 15.81.5 as a fix, and provides general mitigations, but makes no claims of active exploitation or PoC availability.
Urgent alert: TeamViewer’s CVE-2026-16444 lets authenticated session participants write files anywhere locally—and maybe run code. Affects Windows, macOS & Linux clients. Update to 15.81.5 or latest; apply MFA, limit file transfers, monitor endpoints. #TeamViewer #RemoteCodeExecution #Vulnerability #CyberSecurity #PatchNow #SecurityNews #RemoteAccess #CVE2026 https://thedailytechfeed.com/critical-teamviewer-flaw-let-attackers-run-code-remotely/
Post summary
TeamViewer’s CVE‑2026‑16444 enables authenticated participants to write files anywhere locally and may allow code execution; updating to version 15.81.5 or later is recommended.
🚨*CVE* CVE-2026-16444 Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior Version 15.81.5 allows an authenticated remote session participant to write fi… https://www.cve.org/CVERecord?id=CVE-2026-16444 ----- Traducción: CVE-2026-16444 Imp… https://infoflow.cloud`
Post summary
The tweet announces CVE‑2026‑16444, a path traversal flaw in TeamViewer Desktop Clients before version 15.81.5 that lets authenticated remote session participants write files.
CVE-2026-16444 Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior Version 15.81.5 allows an authenticated remote session participant to write fi… https://www.cve.org/CVERecord?id=CVE-2026-16444
Post summary
TeamViewer Desktop Clients older than 15.81.5 suffer an authenticated path traversal flaw that permits attackers to write arbitrary files; no PoC or active exploitation is reported.