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CRITICAL CISA KEV

CVE-2025-43300

CVSS v3

10

CRITICAL

EPSS Score

32.5 %

exploit probability, as of 2026-10-18

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2025-43300 yet.

Full record on NVD

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

CISA Known Exploited Vulnerability

Date Added
2025-08-21
Patch Due Date
2025-09-11
Ransomware Use
Unknown

Technical details

Published
2025-08-21

Frequently asked questions

What is CVE-2025-43300?

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

Is CVE-2025-43300 actively exploited?

Yes. CVE-2025-43300 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2025-09-11.

What is the CVSS score for CVE-2025-43300?

CVE-2025-43300 has a CVSS v3 base score of 10 (CRITICAL severity).

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