Out-of-bounds Read in 7-zip
CVE-2026-48092
7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (24.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-48092?
- CVE-2026-48092 is a medium-severity vulnerability in 7-zip, classified under Out-of-bounds Read. CVSS score: 4.3/10. Published 2026-06-05.
- How severe is CVE-2026-48092?
- Medium severity. CVSS v3 base score is 4.3 out of 10.