CVE-2026-68767

hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()

Published Aug 22, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()
First Time appeared Hashcat
Hashcat hashcat
Weaknesses CWE-193
CPEs cpe:2.3:a:hashcat:hashcat:*:*:*:*:*:*:*:*
Vendors & Products Hashcat
Hashcat hashcat
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 6.9, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Aug 26, 2026, 4:16 PM
Reserved
Jul 31, 2026, 4:10 PM
Status
Deferred
Published
Aug 22, 2026, 3:16 PM
Modified
Oct 14, 2026, 1:10 PM