VulnerabilityAnalyzed
CVE-2026-43656
An out-of-bounds write issue was addressed with improved input validation.
HIGH 7.3EPSS 0.27%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 0.27% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- apple/ipados · apple/iphone os · apple/macos
- Source
- product-security@apple.com
References
- https://support.apple.com/en-us/127110Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127111Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127115Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127116Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127117Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.