Process crash via one-byte decompressor over-read
Published Sep 5, 2026 · Updated Sep 10, 2026
Heap buffer over-read in Genivia ugrep before 7.6.0 allows local users to crash the process by searching a crafted .Z file. The getcode() function in src/zopen.c consumes one byte beyond its allocated struct s_zstate buffer during LZW decoding. Execution requires a user to invoke compressed-file searching on the attacker-supplied archive; the documented consequence is process termination.
Summary
What happened
Heap buffer over-read in Genivia ugrep before 7.6.0 allows local users to crash the process by searching a crafted .Z file. The getcode() function in src/zopen.c consumes one byte beyond its allocated struct s_zstate buffer during LZW decoding. Execution requires a user to invoke compressed-file searching on the attacker-supplied archive; the documented consequence is process termination.
The record
- CVE
- CVE-2025-15614
- Published
- Sep 5, 2026
- Updated
- Sep 10, 2026
- Vendor
- Genivia
- Product
- ugrep
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 5, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <7.6.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Issue 511 crash-11.zip reproducerproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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