🛡️ CVE-2023-49528 — fedora

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. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/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: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-49528 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

CVE-2023-49528 is recorded against 2 packages.

• fedora
• ffmpeg

Timeline and source

Published on 12 April 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

lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
trac.ffmpeg.org
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
trac.ffmpeg.org

Other advisories for this package

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

• CVE-2026-54230 (7.0 High, published 13 Jun 2026)
• CVE-2026-54231 (5.5 Medium, published 13 Jun 2026)
• CVE-2026-35094 (3.3 Low, published 1 Apr 2026)
• CVE-2026-35093 (8.8 High, published 1 Apr 2026)
• CVE-2023-4134 (5.5 Medium, published 14 Nov 2024)
• CVE-2024-3056 (7.7 High, published 2 Aug 2024)
• CVE-2024-6290 (8.8 High, published 24 Jun 2024)
• CVE-2024-6293 (8.8 High, published 24 Jun 2024)

Same weakness in other software

These advisories are the same class of weakness (CWE-122: Heap-based Buffer Overflow) in other software:

• CVE-2022-46290 (9.8 Critical, published 13 Jul 2026)
• CVE-2022-46289 (9.8 Critical, published 13 Jul 2026)
• CVE-2023-25668 (9.5 Critical, published 29 Jun 2026)
• CVE-2023-40889 (9.5 Critical, published 29 Jun 2026)
• CVE-2023-43688 (7.5 High, published 9 Jun 2026)
• CVE-2024-30045 (6.3 Medium, published 4 Sep 2025)
• CVE-2023-28905 (8.0 High, published 28 Jun 2025)
• CVE-2024-31580 (8.0 High, published 11 Jun 2025)

CVE-2023-49528 on other distributions

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

Details

Affected Packages

References