CVE-2026-68767

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.

References

https://www.vulncheck.com/advisories/hashcat-through-off-by-one-out-of-bounds-heap-write-in-fgetl

https://github.com/hashcat/hashcat/issues/4739

https://github.com/hashcat/hashcat/commit/93b55d37d3b2340013d4036f10181ddc67d44249

https://github.com/hashcat/hashcat/blob/v7.1.2/src/filehandling.c#L1032-L1060

https://github.com/hashcat/hashcat

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS