CVE-2026-68767

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-08-22. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
6.1
EG Score
6.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 22, 2026

Advisory Details (5)

Auto-updated Aug 22, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

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

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

hashcat/src/filehandling.c at v7.1.2 · hashcat/hashcat · GitHub

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

commit 93b55d37d3b2 (hashcat/hashcat)

Fix landed in hashcat/hashcat commit 93b55d37d3b2 — awaiting tagged release

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

GitHub - hashcat/hashcat: World's fastest and most advanced password recovery utility · GitHub

https://github.com/hashcat/hashcat
generic

Coordinated Vulnerability Disclosure - Off-by-One Null Byte Heap Buffer Overflow in fgetl() · Issue #4739 · hashcat/hashcat · GitHub

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

Vendor Advisories for CVE-2026-68767(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-25 16:13 UTCEG score recompute
  2. 2026-08-25 16:13 UTCGHSA enrichment
  3. 2026-08-25 13:49 UTCEPSS rescore
  4. 2026-08-24 15:57 UTCEG score recompute
  5. 2026-08-24 15:57 UTCGHSA enrichment
  6. 2026-08-23 15:40 UTCEG score recompute
  7. 2026-08-23 15:40 UTCGHSA enrichment
  8. 2026-08-22 15:24 UTCEG score recompute
  9. 2026-08-22 14:26 UTCEG score recompute
  10. 2026-08-22 14:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-68767?
CVE-2026-68767 is a medium vulnerability published on August 22, 2026. 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…
When was CVE-2026-68767 disclosed?
CVE-2026-68767 was first published in the National Vulnerability Database on August 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68767 actively exploited?
CVE-2026-68767 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.3% of all scored CVEs.
What is the CVSS score of CVE-2026-68767?
CVE-2026-68767 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-68767?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68767, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-68767

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