CVE-2025-43300
Apple iOS and iPadOS, Apple iPadOS, Apple macOS
Published 21 Aug 2025 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 21 Aug 2025, with a remediation deadline of 11 Sept 2025 for US federal agencies.
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.
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.
References
- support.apple.com/en-us/124925 · Release Notes, Vendor Advisory
- support.apple.com/en-us/124926 · Release Notes, Vendor Advisory
- support.apple.com/en-us/124927 · Release Notes, Vendor Advisory
- support.apple.com/en-us/124928 · Release Notes, Vendor Advisory
- support.apple.com/en-us/124929 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125141 · Release Notes, Vendor Advisory
- support.apple.com/en-us/125142 · Release Notes, Vendor Advisory
- seclists.org/fulldisclosure/2025/Sep/10 · Mailing List, Third Party Advisory
- seclists.org/fulldisclosure/2025/Sep/14 · Mailing List, Third Party Advisory
- seclists.org/fulldisclosure/2025/Sep/52 · Mailing List, Third Party Advisory
- github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md · Exploit, Third Party Advisory
- github.com/cisagov/vulnrichment/issues/201 · Issue Tracking
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300 · US Government Resource