CVE-2026-43661
HIGHCVSS 7.5/10EPSS 0.42%
Last modified
CVE-2026-43661 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
Description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image may corrupt process memory.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 26.5 |
| Apple | Iphone Os | < 26.5 |
| Apple | Macos | >= 26.0, < 26.5 |
| Apple | Tvos | < 26.5 |
| Apple | Watchos | < 26.5 |
References
- https://support.apple.com/en-us/127110Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127115Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127118Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127119Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-43661?
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image may corrupt process memory.
How severe is CVE-2026-43661?
CVE-2026-43661 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2026-43661?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-43661?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST