CVE-2026-43655

CVSS 7.3 HIGHEPSS 0.3%CWE-125

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 7.3EPSS 0.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

11 May 2026Published on NVD

21 Jun 2026Public PoC

Recommendation: Plan a near-term fix — a public PoC already exists.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An app may be able to cause unexpected system termination or read kernel memory.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected products

Apple · iOS and iPadOS Apple · macOS Apple · tvOS Apple · watchOS

public PoCs found — 1

githubgithub.com/Somisomair/CVE-2026-43655-AppleM2ScalerCSCDriver-UAF★ 0

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://support.apple.com/en-us/127110 https://support.apple.com/en-us/127115 https://support.apple.com/en-us/127118 https://support.apple.com/en-us/127119