Is CVE-2025-8454 actively exploited?

No active exploitation of CVE-2025-8454 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-8454 be exploited remotely?

Yes. CVE-2025-8454 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-8454?

CVE-2025-8454 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-8454

CWE-347Published: August 1, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-8454 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.