🛡️ CVE-2024-26333 — swftools

How this vulnerability can be exploited

This issue can be reached with local access to the system, 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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

• Attack vector: Local — a local account, shell or session on the host is needed.
• 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

CVE-2024-26333 is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.

Affected software

CVE-2024-26333 is recorded against 1 package.

• swftools

Timeline and source

Published on 5 March 2024 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com

Other advisories for this package

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

• CVE-2025-6271 (3.3 Low, published 19 Jun 2025)
• UBUNTU-CVE-2025-6271 (published 19 Jun 2025)
• UBUNTU-CVE-2024-28458 (published 11 Apr 2024)
• CVE-2024-28458 (7.5 High, published 11 Apr 2024)
• UBUNTU-CVE-2024-26339 (published 5 Mar 2024)
• CVE-2024-26339 (9.1 Critical, published 5 Mar 2024)
• UBUNTU-CVE-2024-26337 (published 5 Mar 2024)
• CVE-2024-26337 (4.3 Medium, published 5 Mar 2024)

Same weakness in other software

These advisories are the same class of weakness (CWE-416: Use After Free) in other software:

• CVE-2022-21540 (5.3 Medium, published 8 May 2026)
• CVE-2022-50552 (7.8 High, published 7 Oct 2025)
• CVE-2022-50542 (7.8 High, published 7 Oct 2025)
• CVE-2022-50507 (7.8 High, published 4 Oct 2025)
• CVE-2022-50496 (7.8 High, published 4 Oct 2025)
• CVE-2022-50492 (7.8 High, published 4 Oct 2025)
• CVE-2022-50488 (7.8 High, published 4 Oct 2025)
• CVE-2022-50454 (7.8 High, published 1 Oct 2025)

CVE-2024-26333 on other distributions

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

Details

Affected Packages

References