Out-of-bounds Read in Genivia Ugrep
CVE-2025-15614
ugrep before 7.6.0 contains a heap buffer over-read vulnerability in the LZW decompressor when processing crafted .Z archive files. Attackers can supply malformed .Z files that cause the decompressor to read one byte past the allocated heap buffer, potentially crashing the process.
Vulnerability class: Buffer Overflow
Published · last modified .
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:N/A:L.
EPSS exploit prediction
EPSS: 0.001 (1.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: -0.000
Affected products
Weakness classification (CWE)
References
- github.com/Genivia/ugrep/issues/511 (issue-tracking)
- github.com/Genivia/ugrep/commit/c12849a11264e2c81c860bf78ee9039772f307a4 (patch)
- github.com/Genivia/ugrep/blob/v7.5.0/src/zopen.c (technical-description)
- github.com/Genivia/ugrep/releases/tag/v7.6.0 (release-notes)
- github.com/Genivia/ugrep (product)
- www.vulncheck.com/advisories/ugrep-before-7.6.0-heap-buffer-over-read-via-z-dec… (third-party-advisory)
Frequently asked questions
- What is CVE-2025-15614?
- CVE-2025-15614 is a low-severity vulnerability in Genivia Ugrep, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2026-09-05.
- How severe is CVE-2025-15614?
- Low severity. CVSS v3 base score is 3.3 out of 10.