7-Zip: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-2114 · first 29.06.2026 · updated 07.10.2026 · CVSS 3,3
What it is about
7-Zip ist ein Extraktionsdienstprogramm für Archive, die im ZIP-Format komprimiert sind. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in 7-Zip ausnutzen, um Sicherheitsvorkehrungen zu umgehen und Daten zu manipulieren.
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
- Sicherheitsvorkehrungen zu umgehen
- Daten zu manipulieren
Am I affected?
Affected according to the BSI:
- Debian Linux
- Fedora Linux
- NetApp ActiveIQ Unified Manager for Microsoft Windows
- HCL BigFix Inventory
- Open Source 7-Zip <=26.02
- SUSE openSUSE
- HCL BigFix Scanner
- Open Source 7-Zip <26.03
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source 7-Zip <=26.02
- Open Source 7-Zip 26.03
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)
- GitHub Advisory Database vom 2026-06-28 github.com
- PoC auf GitHub vom 2026-06-28 github.com
- VulnCheck Advisory vom 2026-06-28 www.vulncheck.com
- NetApp Security Advisory NTAP-20260724-0011 vom 2026-07-24 security.netapp.com
- HCL Security Bulletin vom 2026-07-27 support.hcl-software.com
- Debian Security Advisory DLA-4719 vom 2026-08-05 lists.debian.org
- Debian Security Advisory DLA-4718 vom 2026-08-05 lists.debian.org
- HISTORY of the 7-Zip vom 2026-09-03 www.7-zip.org
- openSUSE Security Update OPENSUSE-SU-2026:11777-1 vom 2026-09-16 lists.opensuse.org
- Fedora Security Advisory FEDORA-EPEL-2026-7B07DD12C9 vom 2026-10-06 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-E527D77D36 vom 2026-10-06 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-29947F7CAA vom 2026-10-06 bodhi.fedoraproject.org
CVE: CVE-2026-58052
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.