CVE-2026-68767hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()
Updated under an hour ago ()
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It affects hashcat. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- Weakness (CWE)
- CWE-193
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
hashcat hashcat hashcat:hashcat (from the name) | through 7.1.2 | CNA record |
References
- https://github.com/hashcat/hashcat/issues/4739issue-tracking
- https://github.com/hashcat/hashcatproduct
- https://github.com/hashcat/hashcat/commit/93b55d37d3b2340013d4036f10181ddc67d44249patch
- https://github.com/hashcat/hashcat/blob/v7.1.2/src/filehandling.c#L1032-L1060technical-description
- https://www.vulncheck.com/advisories/hashcat-through-off-by-one-out-of-bounds-heap-write-in-fgetlthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.