CVE-2026-68767
Severity CVSS v4.0:
MEDIUM
Type:
Unavailable / Other
Publication date:
22/08/2026
Last modified:
22/08/2026
Description
hashcat's fgetl() function in src/filehandling.c writes a null terminator one byte past the caller's buffer when an input line is exactly the buffer length. Attackers can trigger this out-of-bounds heap write by providing a hash file, potfile, or wordlist containing a line of exactly HCBUFSIZ_LARGE bytes.
Impact
Base Score 4.0
6.90
Severity 4.0
MEDIUM
Base Score 3.x
6.10
Severity 3.x
MEDIUM
References to Advisories, Solutions, and Tools
- https://github.com/hashcat/hashcat
- https://github.com/hashcat/hashcat/blob/v7.1.2/src/filehandling.c#L1032-L1060
- https://github.com/hashcat/hashcat/commit/93b55d37d3b2340013d4036f10181ddc67d44249
- https://github.com/hashcat/hashcat/issues/4739
- https://www.vulncheck.com/advisories/hashcat-through-off-by-one-out-of-bounds-heap-write-in-fgetl