CVE-2026-68767
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.
- CVSS 4.0
- 6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 6.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)
- CWE
- CWE-193
- Published
- Modified
- Record from
- the NVD, synced
References
- 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