🛡️ CVE-2025-5267 on Ubuntu — mozjs102

Distribution advisory

This page covers CVE-2025-5267 as tracked by Ubuntu, for the package mozjs102. The fix is available in version 1:128.12.0+build1-0ubuntu0.22.04.1; earlier versions remain affected.

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. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

CVSS metrics in full

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

• 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: Required — someone has to click, open or visit something.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: None.

Weakness class

UBUNTU-CVE-2025-5267 is classified as CWE-1021: Improper Restriction of Rendered UI Layers. The interface can be framed or overlaid by another site, so clicks can be redirected without the user noticing.

Affected software

UBUNTU-CVE-2025-5267 is recorded against 8 packages.

• mozjs102
• mozjs115
• mozjs38
• mozjs52
• mozjs68
• mozjs78
• mozjs91
• thunderbird (fixed in 1:128.12.0+build1-0ubuntu0.22.04.1)

Timeline and source

Published on 27 May 2025 and last revised on 29 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
www.mozilla.org (Report)
www.mozilla.org (Report)
bugzilla.mozilla.org (Report)
www.mozilla.org (Report)
www.mozilla.org (Report)
ubuntu.com (Advisory)

Same weakness in other software

These advisories are the same class of weakness (CWE-1021: Improper Restriction of Rendered UI Layers) in other software:

• CVE-2026-70486 (8.0 High, published 10 Aug 2026)
• CVE-2026-70608 (8.0 High, published 5 Aug 2026)
• CVE-2026-70600 (3.1 Low, published 5 Aug 2026)
• CVE-2026-47723 (8.0 High, published 23 Jul 2026)
• CVE-2026-60370 (7.5 High, published 22 Jul 2026)
• CVE-2026-16397 (6.5 Medium, published 21 Jul 2026)
• CVE-2026-40957 (7.5 High, published 15 Jul 2026)
• CVE-2026-58595 (8.1 High, published 14 Jul 2026)

CVE-2025-5267 on other distributions

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

Details

Affected Packages

References