Low 2.1Published Jun 5, 2013

CVE-2013-3949The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not prevent use of the _POSIX_SPAWN_DISABLE_ASLR and _POSIX_SPAWN_ALLOW_DATA_EXEC flags for setuid and setgid programs, whi…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects apple mac_os_x. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not prevent use of the _POSIX_SPAWN_DISABLE_ASLR and _POSIX_SPAWN_ALLOW_DATA_EXEC flags for setuid and setgid programs, which allows local users to bypass intended access restrictions via a wrapper program that calls the posix_spawnattr_setflags function.

CVSS: 2.1 LOW (v2.0, NVD)AV:L/AC:L/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-264
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apple mac_os_x apple:mac_os_x	10.8.0; 10.8.1; 10.8.2; 10.8.3; 10.8.4	NVD

References

References

http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf	exploit
http://www.syscan.org/index.php/sg/program/day/2

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.