CVE-2026-20700KEV · OVERDUE

Apple Multiple Buffer Overflow Vulnerability

High · published February 11, 2026

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 72.1th percentile for exploit probability.

233
days past CISA
deadline
CVSS v3.1
7.8
EPSS
1%
Percentile
72.1
In the wild
Confirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01392 · 72.1th percentile
Published
2026-02-11T22:58Z
KEV added
2026-02-12 · due 2026-03-05
EPSS history
Timeline
  • 12 FEB 00:00Z
    Added to CISA KEV — remediate by Mar 5
    kev
  • 11 FEB 22:58Z
    A memory corruption issue was addressed with improved state management
    cvelistv5