What is CVE-2026-58052?

CVE-2026-58052 is a low-severity vulnerability in 7-zip, classified under Protection Mechanism Failure. CVSS score: 3.3/10. Published 2026-06-28.

How severe is CVE-2026-58052?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in 7-zip

CVE-2026-58052

7-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an archive-supplied Zone.Identifier stream matches the exact name 'Zone.Identifier' while a RAR…

EPSS: 0.001 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

7-zip — versions 0

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

disclosure@vulncheck.com (exploit, Broken Link, third-party-advisory)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-58052?: CVE-2026-58052 is a low-severity vulnerability in 7-zip, classified under Protection Mechanism Failure. CVSS score: 3.3/10. Published 2026-06-28.
How severe is CVE-2026-58052?: Low severity. CVSS v3 base score is 3.3 out of 10.