Is CVE-2013-3949 being actively exploited?

CVE-2013-3949 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-3949?

CVE-2013-3949 has a CVSS 2.0 base score of 2.1 (LOW).

CVE-2013-3949

LOW · CVSS 2.1EPSS 0.5%EU EUVD

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.

Key facts

CVSS score: 2.1 (v2.0)
Severity: LOW
CVSS vector: AV:L/AC:L/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-264
EPSS score: 0.5% (43th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-3881)
Published: June 5, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-3881 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x
apple / mac os x

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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