CVE-2026-68765 (GCVE-0-2026-68765)

Vulnerability from cvelistv5 – Published: 2026-08-17 20:48 – Updated: 2026-08-21 11:20
VLAI
Title
hashcat KeePass KDBX v4 Module Heap Buffer Overflow via Token Field
Summary
hashcat master branch builds after v7.1.2 contain a heap buffer overflow vulnerability in the KeePass AESKDF/KDBX v4 module (module 34301) that allows attackers to corrupt adjacent heap memory by supplying an oversized ninth hash field token. The module accepts up to 600 hex characters for the ninth token field but decodes it into a fixed 256-byte buffer with no length check, allowing a maximal input to write up to 44 bytes past the buffer boundary into adjacent esalt fields and heap chunk metadata, potentially enabling heap corruption or memory access violations.
Severity
5.2 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:16 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6398 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
hashcat hashcat Affected: ef52453de9523f6a010652847b61cb340ed5daa5 , < 6f374c4ff7d5dc951530fbbbcf6b45e3c169b100 (git)
guessed Create a notification for this product.
Date Public
2026-08-17 00:00
Credits
Piotr Kowalczyk
Show details on NVD website
To clipboard 

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