CVE-2023-35866Public exploit

Database security changes via missing credential reauthentication

Published Jun 19, 2023 · Updated Dec 11, 2024

Incorrect authorization in KeePassXC 2.7.5 and earlier allows local users to change database security settings without reauthentication. The Database Settings security workflow applies master-password and YubiKey changes to an already unlocked database without first validating the existing master password or challenge-response key. The user must have unfettered local access to an unlocked database session; KeePassXC disputes the security boundary because such access already permits export or modification.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in KeePassXC 2.7.5 and earlier allows local users to change database security settings without reauthentication. The Database Settings security workflow applies master-password and YubiKey changes to an already unlocked database without first validating the existing master password or challenge-response key. The user must have unfettered local access to an unlocked database session; KeePassXC disputes the security boundary because such access already permits export or modification.

The record

CVE
CVE-2023-35866
Published
Jun 19, 2023
Updated
Dec 11, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, T1556
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1556Modify Authentication Process

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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