Is there a public exploit for CVE-2026-125742?

No public exploit for CVE-2026-125742 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-125742?

CVE-2026-125742 scores CVSS 8.5 (v4.0), rated high.

What does CVE-2026-125742 affect?

CVE-2026-125742 affects 7-Zip 7-Zip.

8.5 High

7-Zip before 26.06 contains a heap out-of-bounds write vulnerability in the LZX decoder that lets attackers corrupt memory when a…

CVE-2026-125742

7-Zip before 26.06 contains a heap out-of-bounds write vulnerability in the LZX decoder that lets attackers corrupt memory when a continuation CAB volume declares a smaller window. Attackers can entice victims to extract crafted multi-volume CAB archives, where a stale pos value bypasses bounds checks, enabling arbitrary code execution.

Assessment

CVSS: 8.5 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 10 November 2026
Last updated: 10 November 2026
Affected: 7-Zip · 7-Zip
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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