CVE-2026-68765

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine with an admin-level account, but needs a user to act. High risk of service disruption.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-17 21:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-09-24 20:06 UTC Last updatedMost recent change to the record

Details

Published

2026-08-17 21:16 UTC

Last modified

2026-09-24 20:06 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-122

Record status

Deferred

Attack profile CVSS 4.0 · 5.2

Attack vector

Local

Complexity

Low

Attack requirements

None

Privileges needed

High

User interaction

Active

Confidentiality

None

Integrity

Low

Availability

High