CVE-2025-43245: Apple macOS · An app may be able to access protected user data
Affects Apple macOSSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 15.6 : patch Apple macOS as a priority.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 15.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple macOS | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-43245, organizations should immediately deploy the security updates released by Apple in macOS Sequoia 15.6, Sonoma 14.7.7, and Ventura 13.7.7 or later. Beyond patching, organizations should enforce strict application whitelisting and code-signing policies to prevent execution of untrusted or downgraded applications. Monitoring and logging of application code-signing validation failures can help detect attempted exploitation. Network segmentation and limiting macOS device exposure to untrusted networks reduce the attack surface. Employ endpoint detection and response (EDR) solutions capable of identifying anomalous behaviors related to code-signing bypass attempts. Educate users about the risks of installing unverified applications and maintain least privilege principles to minimize potential damage. Regularly audit macOS systems for compliance with security baselines and promptly revoke any certificates or profiles that could be abused for downgrade attacks. Finally, maintain an incident response plan tailored to macOS environments to quickly contain and remediate any exploitation attempts.
Description
A downgrade issue was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An app may be able to access protected user data.
References
- support.apple.com/en-us/124149 (opens in a new tab)
- support.apple.com/en-us/124150 (opens in a new tab)
- support.apple.com/en-us/124151 (opens in a new tab)
- seclists.org/fulldisclosure/2025/Jul/34 (opens in a new tab)
- seclists.org/fulldisclosure/2025/Jul/33 (opens in a new tab)
- seclists.org/fulldisclosure/2025/Jul/32 (opens in a new tab)