🛡️ CVE-2023-21476 — android

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 high, integrity high, availability low.

CVSS metrics in full

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

• 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: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2023-21476 is classified as CWE-787: Out-of-bounds Write. Data is written past the end or before the start of a buffer, corrupting whatever is stored there.

Affected software

CVE-2023-21476 is recorded against 1 package.

• android

Timeline and source

Published on 3 September 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

security.samsungmobile.com

Other advisories for this package

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

• CVE-2024-0028 (5.5 Medium, published 5 Sep 2025)
• CVE-2023-35657 (4.0 Medium, published 4 Sep 2025)
• CVE-2023-21466 (5.3 Medium, published 3 Sep 2025)
• CVE-2023-21473 (6.8 Medium, published 3 Sep 2025)
• CVE-2023-21480 (8.5 High, published 3 Sep 2025)
• CVE-2023-21472 (6.8 Medium, published 3 Sep 2025)
• CVE-2023-21479 (5.3 Medium, published 3 Sep 2025)
• CVE-2023-21471 (4.0 Medium, published 3 Sep 2025)

Same weakness in other software

These advisories are the same class of weakness (CWE-787: Out-of-bounds Write) in other software:

• CVE-2019-5063 (8.0 High, published 9 Jul 2026)
• CVE-2017-12605 (8.0 High, published 9 Jul 2026)
• CVE-2022-29208 (8.0 High, published 9 Jul 2026)
• CVE-2022-23561 (8.0 High, published 9 Jul 2026)
• CVE-2019-9423 (8.0 High, published 9 Jul 2026)
• CVE-2018-5268 (published 9 Jul 2026)
• CVE-2017-12606 (8.0 High, published 9 Jul 2026)
• CVE-2017-12603 (8.0 High, published 2 Jul 2026)

Details

Affected Packages

References