CVE-2026-20700 KEV
7.8
HIGH · CVSS 3.1 · EPSS 1.3% (pctl 70)
Patch first
On CISA KEV — known exploited in the wild, due 2026-03-05.
Description
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 1.34% — more likely to be exploited than 70% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | yes — remediate by 2026-03-05 |
| Public exploit | none known |
| Published | 2026-02-11 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Apple Multiple Buffer Overflow Vulnerability |
|---|---|
| Added | 2026-02-12 |
| Due | 2026-03-05 |
| Vendor / product | Apple / Multiple Products |
| Ransomware use | none reported |
Affected (6)
| Vendor | Product |
|---|---|
| apple | ipados |
| apple | iphone os |
| apple | macos |
| apple | tvos |
| apple | visionos |
| apple | watchos |
References
→ the Explorer · watch your stack · NVD