CVE-2025-43300

Name: CVE-2025-43300
Creator: NVD / NIST
Published: 2025-08-21T01:15:36.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10Actively ExploitedEPSS 19.97%

Last modified Jun 17, 2026

CVE-2025-43300 is a critical-severity vulnerability rated 10/10 on the CVSS scale. 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, iOS 18.6.2 and iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, macOS Ventura 13.7.8. CISA has confirmed active exploitation in the wild. EPSS estimates a 19.97% chance of exploitation in the next 30 days.

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, iOS 18.6.2 and iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, macOS Ventura 13.7.8. 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.

Metrics

CVSS 3.1

10/10

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

EPSS Probability

19.97%

97.1th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Sep 11, 2025.

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 15.8.5
Apple	Ipados	>= 16.0, < 16.7.12
Apple	Ipados	>= 17.0, < 17.7.10
Apple	Ipados	>= 18.0, < 18.6.2
Apple	Iphone Os	< 15.8.5
Apple	Iphone Os	>= 16.0, < 16.7.12
Apple	Iphone Os	>= 17.0, < 18.6.2
Apple	Macos	>= 13.0, < 13.7.8
Apple	Macos	>= 14.0, < 14.7.8
Apple	Macos	>= 15.0, < 15.6.1

References

https://support.apple.com/en-us/124925Release Notes, Vendor Advisory
https://support.apple.com/en-us/124926Release Notes, Vendor Advisory
https://support.apple.com/en-us/124927Release Notes, Vendor Advisory
https://support.apple.com/en-us/124928Release Notes, Vendor Advisory
https://support.apple.com/en-us/124929Release Notes, Vendor Advisory
https://support.apple.com/en-us/125141Release Notes, Vendor Advisory
https://support.apple.com/en-us/125142Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2025/Sep/10Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2025/Sep/14Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2025/Sep/52Mailing List, Third Party Advisory
https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.mdExploit, Third Party Advisory
https://github.com/cisagov/vulnrichment/issues/201Issue Tracking
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300US Government Resource

Timeline

Published: Aug 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-43300?

How severe is CVE-2025-43300?

CVE-2025-43300 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 19.97% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2025-43300?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-43300?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST