🛡️ CVE-2025-4638 on Ubuntu — pcl

Distribution advisory

This page covers CVE-2025-4638 as tracked by Ubuntu, for the package pcl. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

UBUNTU-CVE-2025-4638 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

UBUNTU-CVE-2025-4638 is recorded against 1 package.

• pcl

Timeline and source

Published on 14 May 2025 and last revised on 20 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
github.com (Report)
github.com (Report)

Other advisories for this package

pcl has other advisories on record. If you are patching this one, these are worth checking on the same host:

• UBUNTU-CVE-2025-52937 (published 23 Jun 2025)
• UBUNTU-CVE-2025-4640 (published 14 May 2025)
• USN-7227-1 (published 23 Jan 2025)
• UBUNTU-CVE-2024-53432 (published 21 Nov 2024)
• DEBIAN-CVE-2024-53432 (published 21 Nov 2024)
• OSV-2022-795 (published 28 Aug 2022)
• OSV-2022-614 (published 24 Jul 2022)

Same weakness in other software

These advisories are the same class of weakness (CWE-119: Improper Restriction of Operations within Memory Buffer Bounds) in other software:

• CVE-2017-12862 (8.0 High, published 9 Jul 2026)
• CVE-2017-12601 (8.0 High, published 9 Jul 2026)
• CVE-2022-1941 (8.0 High, published 7 Jul 2026)
• CVE-2013-4179 (published 6 Jul 2026)
• CVE-2013-4155 (published 6 Jul 2026)
• CVE-2013-0270 (published 2 Jul 2026)
• CVE-2022-33162 (7.3 High, published 16 Aug 2024)
• CVE-2022-33267 (6.7 Medium, published 6 Jun 2023)

CVE-2025-4638 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References