🛡️ CVE-2024-0754 on Ubuntu — firefox

Distribution advisory

This page covers CVE-2024-0754 as tracked by Ubuntu, for the package firefox. The fix is available in version 122.0+build2-0ubuntu0.20.04.1; 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 none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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: Required — someone has to click, open or visit something.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

UBUNTU-CVE-2024-0754 is classified as CWE-248: Uncaught Exception. An exception is thrown from a function, but it is not caught.

Affected software

UBUNTU-CVE-2024-0754 is recorded against 7 packages.

• firefox (fixed in 122.0+build2-0ubuntu0.20.04.1)
• mozjs102
• mozjs38
• mozjs52
• mozjs68
• mozjs78
• mozjs91

Timeline and source

Published on 23 January 2024 and last revised on 22 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

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

Other advisories for this package

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

• MGASA-2026-0325 (published 7 Aug 2026)
• CGA-r72j-7q7m-f2vx (published 30 Jul 2026)
• CGA-8cmc-mjq4-wxvj (published 30 Jul 2026)
• CGA-r6wh-4xxp-mwjg (published 30 Jul 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-248: Uncaught Exception) in other software:

• CVE-2026-52739 (5.9 Medium, published 18 Aug 2026)
• CVE-2026-52738 (published 18 Aug 2026)
• CVE-2026-52731 (6.5 Medium, published 18 Aug 2026)
• CVE-2026-61666 (8.0 High, published 17 Aug 2026)
• CVE-2026-62909 (published 11 Aug 2026)
• GHSA-3x6r-wxxg-53vv (published 5 Aug 2026)
• GHSA-wqjv-9729-c5q2 (published 24 Jul 2026)
• GHSA-hrxh-6v49-42gf (8.0 High, published 21 Jul 2026)

CVE-2024-0754 on other distributions

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

Details

Affected Packages

References