CVE-2025-53391

Publication date 28 June 2025

Last updated 30 April 2026

Ubuntu priority

Cvss 3 Severity Score

Description

The Debian zuluPolkit/CMakeLists.txt file for zuluCrypt through the zulucrypt_6.2.0-1 package has insecure PolicyKit allow_any/allow_inactive/allow_active settings that allow a local user to escalate their privileges to root.

Why is this CVE high priority?

Upstream rates this as being high severity

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
zulucrypt	26.04 LTS resolute	Not in release
	25.10 questing	Vulnerable
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 6.2.0-1ubuntu3+esm1
	22.04 LTS jammy	Fixed 5.7.1-2ubuntu0.1~esm1
	20.04 LTS focal	Fixed 5.7.0-1ubuntu0.1~esm1
	18.04 LTS bionic	Fixed 5.4.0-2ubuntu0.1~esm2
	16.04 LTS xenial	Not affected

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Severity score breakdown

Parameter	Value
Base score	9.3 · Critical
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-8218-1
zuluCrypt vulnerability
30 April 2026