CVE-2026-20700
HighExploitedPublic exploitA memory corruption issue was addressed with improved state management.
Published Feb 11, 2026 · Updated Apr 2, 2026
Key Facts
Patch immediately- CVE-2026-20700 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Ipados (Apple), Iphone OS (Apple), macOS (Apple) and 4 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 11, 2026. Public exploit code is available.
- EPSS estimates a 1.4% probability of exploitation in the next 30 days.
- Fixed versions are available, including Ipados 26.3, Iphone OS 26.3, macOS 26.3.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
1.4%
Higher than 71.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-20700 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 12, 2026 | Mar 5, 2026 | Not reported |
| Industry KEV feed | Feb 11, 2026 | Mar 5, 2026 | Not reported |
| CIRCL KEV | Feb 12, 2026 | Mar 5, 2026 | Not reported |
| ENISA EUVD | Feb 12, 2026 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
11 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| IpadosApple | See advisory | 26.3 |
| Iphone OSApple | See advisory | 26.3 |
| macOSApple | See advisory | 26.3 |
| tvOSApple | See advisory | 26.3 |
| visionOSApple | See advisory | 26.3 |
Patched Releases
Ipados
26.3
Iphone OS
26.3
macOS
26.3
tvOS
26.3
visionOS
26.3
watchOS
26.3
iOS and iPadOS
26.3
Timeline
Publicly disclosed
Feb 11, 2026
Added to Industry KEV feed
Feb 11, 2026
Added to CISA KEV
Feb 12, 2026
Added to CIRCL KEV
Feb 12, 2026
Added to ENISA EUVD
Feb 12, 2026
Last updated
Apr 2, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A memory corruption issue was addressed with improved state management.
Affected: Ipados (Apple); Iphone OS (Apple); macOS (Apple), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 11, 2026.
Yes. It was added on Feb 12, 2026 with a federal remediation due date of Mar 5, 2026.
Public exploit code is available.
Fixed versions are available, including Ipados 26.3, Iphone OS 26.3, macOS 26.3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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