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Fencer Intel
medium 4.9

CVE-2013-3953 json

The mach_port_space_info function in osfmk/ipc/mach_debug.c in the XNU kernel in Apple Mac OS X 10.8.x does not initialize a certain struct…

published 13y ago modified 4mo ago also EUVD-2013-3885

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

The mach_port_space_info function in osfmk/ipc/mach_debug.c in the XNU kernel in Apple Mac OS X 10.8.x does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted call.

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Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • antid0te.com http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:C/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.