CVE-2025-8454

Publication date 1 August 2025

Last updated 23 May 2026

Ubuntu priority

Cvss 3 Severity Score

Description

It was discovered that uscan, a tool to scan/watch upstream sources for new releases of software, included in devscripts (a collection of scripts to make the life of a Debian Package maintainer easier), skips OpenPGP verification if the upstream source is already downloaded from a previous run even if the verification failed back then.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
devscripts	26.04 LTS resolute	Vulnerable, fix deferred
	25.10 questing	Vulnerable, fix deferred
	25.04 plucky	Ignored end of life, was deferred [2026-05-22]
	24.04 LTS noble	Vulnerable, fix deferred
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Vulnerable, fix deferred
	14.04 LTS trusty	Vulnerable, fix deferred

Notes

hlibk

As of 2026-05-22, no upstream fix for this issue.

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H