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Known exploited vulnerability

CVE-2026-20700

highCVSS 3.1 7.8In CISA KEVEPSS 1.7%Published · Apple

The short answer

CVE-2026-20700 affects Apple iOS and iPadOS and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-02-12: attackers are using it, so patch it first.

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.

Weakness: CWE-119.

Severity

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since Feb 12, 2026

Federal due date Mar 5, 2026

EPSS, next 30 days

1.7%

Higher than 77% of scored CVEs

How it can be exploited

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

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

iOS and iPadOS, macOS, tvOS, visionOS, watchOS. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-20700 being exploited?

Yes. CISA added CVE-2026-20700 to its Known Exploited Vulnerabilities catalog on 2026-02-12, with a federal remediation due date of 2026-03-05.

How do I fix CVE-2026-20700?

CISA's 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.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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