Vulnerability details
CVE-2026-20700
Actively exploited
Apple iOS and iPadOSApple macOSApple tvOSApple visionOSApple watchOS
CVSS 3.1
7.8High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apple | iOS and iPadOS | v < 26.3 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 26.3 | CVEProject cvelistV5 (CNA) |
| Apple | tvOS | v < 26.3 | CVEProject cvelistV5 (CNA) |
| Apple | visionOS | v < 26.3 | CVEProject cvelistV5 (CNA) |
| Apple | watchOS | v < 26.3 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://support.apple.com/en-us/126346
- https://support.apple.com/en-us/126348
- https://support.apple.com/en-us/126351
- https://support.apple.com/en-us/126352
- https://support.apple.com/en-us/126353
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700 government-resource
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Details
- Published
- 2026-02-12
- Last updated
- 2026-04-02
- State
- Published
- Assigner (CNA)
- apple
- Kolun priority
- 81 · Critical
CISA KEV catalog
- Date added
- 2026-02-12
- Due date
- 2026-03-05
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
1.65%
Probability of exploitation in 30 days
76.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer