High severity7.0NVD Advisory· Published Jan 15, 2021· Updated Jun 17, 2026
CVE-2020-25533
CVE-2020-25533
Description
An issue was discovered in Malwarebytes before 4.0 on macOS. A malicious application was able to perform a privileged action within the Malwarebytes launch daemon. The privileged service improperly validated XPC connections by relying on the PID instead of the audit token. An attacker can construct a situation where the same PID is used for running two different programs at different times, by leveraging a race condition during crafted use of posix_spawn.
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Affected products
3- Malwarebytes/Malwarebytesdescription
<4.0+ 1 more
- (no CPE)range: <4.0
- cpe:2.3:a:malwarebytes:malwarebytes:*:*:*:*:-:macos:*:*range: <4.0
Patches
Vulnerability mechanics
References
1- wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid/nvdExploitPatchThird Party Advisory
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