CVE-2025-43204: Apple macOS · Improper Access Control
Affects Apple macOSSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Sep 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple macOS | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-43204, organizations should immediately plan and deploy the macOS Tahoe 26 update, which removes the vulnerable code responsible for the sandbox breakout. Beyond patching, organizations should enforce strict application whitelisting policies to prevent execution of unauthorized or untrusted applications. Employ endpoint detection and response (EDR) solutions capable of monitoring for suspicious behavior indicative of sandbox escapes or privilege escalation attempts. Educate users on the risks of running unverified applications and implement least privilege principles to limit the impact of potential sandbox escapes. Regularly audit installed applications and system configurations to detect anomalies. Network segmentation can also limit lateral movement if a sandbox breakout leads to further compromise. Finally, maintain up-to-date backups and incident response plans tailored to macOS environments to reduce recovery time in case of exploitation.
Description
This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Tahoe 26. An app may be able to break out of its sandbox.