# CVE-2026-20700

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.

- Page: https://www.vulneraibility.com/cve/CVE-2026-20700
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2026-02-12; CISA due date 2026-03-05
- EPSS: 1.68%
- Unvetted proof-of-concept code on GitHub: 2 GitHub proofs of concept (first 2026-05-23)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2026-02-13)
- Weakness: CWE-119
- Published: 2026-02-11

## Affected versions

- Apple iOS and iPadOS: affected < 26.3
- Apple macOS: affected < 26.3
- Apple tvOS: affected < 26.3
- Apple visionOS: affected < 26.3
- Apple watchOS: affected < 26.3

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://support.apple.com/en-us/126346
- [other] https://support.apple.com/en-us/126348
- [other] https://support.apple.com/en-us/126351
- [other] https://support.apple.com/en-us/126352
- [other] https://support.apple.com/en-us/126353
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.