win.rar WinRAR: Schwachstelle ermöglicht Codeausführung
WID-SEC-2026-2152 · first 01.07.2026 · updated 15.07.2026 · CVSS 7,8
What it is about
WinRAR ist ein Dateiarchivierungsprogramm zum Erstellen und Entpacken von Archiven im RAR oder ZIP Datenformat. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in win.rar WinRAR ausnutzen, um beliebigen Programmcode auszuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- Microsoft Azure Linux azl3
- win.rar WinRAR <7.23
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- win.rar WinRAR 7.23
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- EU Vulnerability Database vom 2026-06-30 euvd.enisa.europa.eu
- CVE Record vom 2026-06-30 www.cve.org
- Microsoft Leitfaden für Sicherheitsupdates vom 2026-07-14 msrc.microsoft.com
CVE: CVE-2026-14191
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.