🛡️ CVE-2026-43682 — macos

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

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: 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: High — total loss, or loss the attacker controls.

Weakness class

CVE-2026-43682 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

CVE-2026-43682 is recorded against 1 package.

• macos (from 26.0 up to 26.6)

Timeline and source

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

References

support.apple.com
support.apple.com
support.apple.com

Other advisories for this package

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

• CVE-2026-65400 (9.8 Critical, published 6 Aug 2026)
• CVE-2026-28928 (9.8 Critical, published 27 Jul 2026)
• CVE-2026-43758 (5.5 Medium, published 27 Jul 2026)
• CVE-2026-43802 (9.8 Critical, published 27 Jul 2026)
• CVE-2026-64709 (5.5 Medium, published 27 Jul 2026)
• CVE-2026-64749 (7.8 High, published 27 Jul 2026)
• CVE-2026-28912 (7.8 High, published 27 Jul 2026)
• CVE-2026-43779 (9.8 Critical, published 27 Jul 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-119: Improper Restriction of Operations within Memory Buffer Bounds) in other software:

• CVE-2017-12862 (8.0 High, published 9 Jul 2026)
• CVE-2017-12601 (8.0 High, published 9 Jul 2026)
• CVE-2022-1941 (8.0 High, published 7 Jul 2026)
• CVE-2013-4179 (published 6 Jul 2026)
• CVE-2013-4155 (published 6 Jul 2026)
• CVE-2013-0270 (published 2 Jul 2026)
• CVE-2022-33162 (7.3 High, published 16 Aug 2024)
• CVE-2022-33267 (6.7 Medium, published 6 Jun 2023)

Details

Affected Packages

References