CVE-2025-31187: Apple macOS · An app may be able to modify protected parts of the file system
Affects Apple macOSSource CVE Database V5
Not known to be exploited · CVSS 5.5 Medium · fixed in 15.4 : update Apple macOS when convenient.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 15.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Mar 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 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple macOS | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-31187, organizations should immediately apply the security updates provided by Apple in macOS Sequoia 15.4, Sonoma 14.7.5, and Ventura 13.7.5 or later. Beyond patching, implement strict application control policies to restrict installation and execution of untrusted or unsigned applications, reducing the risk of malicious apps exploiting this vulnerability. Employ endpoint protection solutions capable of detecting unauthorized file system modifications and monitor system integrity regularly using tools like Apple’s System Integrity Protection (SIP) and third-party integrity checkers. Educate users about the risks of installing unverified software and the importance of cautious interaction with app prompts. Limit local user privileges where possible to reduce the attack surface. Additionally, conduct regular audits of file system permissions and monitor logs for suspicious activity indicative of exploitation attempts. These layered defenses will help prevent exploitation even if patching is delayed.
Description
This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5, macOS Ventura 13.7.5. An app may be able to modify protected parts of the file system.
References
- support.apple.com/en-us/122373 (opens in a new tab)
- support.apple.com/en-us/122374 (opens in a new tab)
- support.apple.com/en-us/122375 (opens in a new tab)
- seclists.org/fulldisclosure/2025/Apr/10 (opens in a new tab)
- seclists.org/fulldisclosure/2025/Apr/9 (opens in a new tab)
- seclists.org/fulldisclosure/2025/Apr/8 (opens in a new tab)