CVE-2025-15614 PUBLISHED

ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression

Assigner: VulnCheck
Reserved: 23.03.2026 Published: 05.09.2026 Updated: 05.09.2026

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.

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 4.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS Score: 3.3

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Genivia
Product	ugrep
Versions	Default: unaffected affected from 0 to 7.6.0 (excl.)

CVE-2025-15614 PUBLISHED

ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression

Metrics

Product Status

Credits

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Problem Types