CVE-2026-68767 (GCVE-0-2026-68767)
Vulnerability from cvelistv5 – Published: 2026-08-22 14:12 – Updated: 2026-08-22 14:12
VLAI
EPSS
VEX
Title
hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()
Summary
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.
Severity
6.1 (Medium)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/hashcat/hashcat/issues/4739 | issue-tracking |
| https://github.com/hashcat/hashcat | product |
| https://github.com/hashcat/hashcat/commit/93b55d3… | patch |
| https://github.com/hashcat/hashcat/blob/v7.1.2/sr… | technical-description |
| https://www.vulncheck.com/advisories/hashcat-thro… | third-party-advisory |
Impacted products
Date Public
2026-07-31 00:00
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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