CVE-2025-15614
ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression
CVSS Score
3.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | genivia |
| Product | ugrep |
| Published | Sep 5, 2026 |
| Last Updated | Sep 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
Genivia / ugrep
0 < 7.6.0
References
github.com: https://github.com/Genivia/ugrep/issues/511 github.com: https://github.com/Genivia/ugrep/commit/c12849a11264e2c81c860bf78ee9039772f307a4 github.com: https://github.com/Genivia/ugrep/blob/v7.5.0/src/zopen.c#L673 github.com: https://github.com/Genivia/ugrep/releases/tag/v7.6.0 github.com: https://github.com/Genivia/ugrep vulncheck.com: https://www.vulncheck.com/advisories/ugrep-before-7.6.0-heap-buffer-over-read-via-z-decompression
Credits
🔍 Vlatko Kosturjak