7-Zip: Mehrere Schwachstellen
WID-SEC-2026-1736 · first 29.05.2026 · updated 17.08.2026 · CVSS 7,8
What it is about
7-Zip ist ein Extraktionsdienstprogramm für Archive, die im ZIP-Format komprimiert sind. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in 7-Zip ausnutzen, um Speicherinhalte offenzulegen, einen Denial-of-Service auszulösen oder beliebigen Code 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
- Speicherinhalte offenzulegen
- einen Denial-of-Service auszulösen oder beliebigen Code auszuführen
Am I affected?
Affected according to the BSI:
- Debian Linux
- Fedora Linux
- SUSE Linux
- SUSE openSUSE
- HCL BigFix Inventory
- Open Source 7-Zip <26.01
- HCL BigFix Scanner
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 26.01
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 Security Lab vom 2026-05-22 securitylab.github.com
- Fedora Security Advisory FEDORA-EPEL-2026-52D18D8D5A vom 2026-06-15 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-8D909527BA vom 2026-06-15 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2026-F36864B408 vom 2026-06-15 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2026-4BE7569210 vom 2026-06-15 bodhi.fedoraproject.org
- openSUSE Security Update OPENSUSE-SU-2026:21038-1 vom 2026-06-30 lists.opensuse.org
- SUSE Security Update SUSE-SU-2026:2696-1 vom 2026-06-30 lists.suse.com
- SUSE Security Update SUSE-SU-2026:22347-1 vom 2026-07-01 lists.suse.com
- Debian Security Advisory DLA-4681 vom 2026-07-13 lists.debian.org
- HCL Security Bulletin vom 2026-07-27 support.hcl-software.com
- openSUSE Security Update OPENSUSE-SU-2026:11502-1 vom 2026-08-14 lists.opensuse.org
CVE: CVE-2026-48092, CVE-2026-48101, CVE-2026-48102, CVE-2026-48103, CVE-2026-48104, CVE-2026-48111, CVE-2026-48112
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.