Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
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/93b55d37d3b2340013d4036f10181ddc67d442
- https://github.com/hashcat/hashcat/issues/4739
- https://www.vulncheck.com/advisories/hashcat-through-off-by-one-out-of-bounds-he
FAQ
What is CVE-2026-68767?
CVE-2026-68767 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 he...
How severe is CVE-2026-68767?
CVE-2026-68767 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-68767?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.