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Fencer Intel
critical 9.3

CVE-2014-8835 json

The xpc_data_get_bytes function in libxpc in Apple OS X before 10.10.2 does not verify that a dictionary's Attributes key has the xpc_data…

published 2015-01-30 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-8665

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.3%
EPSS 8.3% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

The xpc_data_get_bytes function in libxpc in Apple OS X before 10.10.2 does not verify that a dictionary's Attributes key has the xpc_data data type, which allows attackers to execute arbitrary code by providing a crafted dictionary to sysmond, related to an "XPC type confusion" issue.

Timeline

  1. First public exploit (EDB-35742)
  2. Published

Exploit prediction

8.25% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-35742 Apple Mac OSX 10.9.x - sysmond XPC Privilege Escalation local, 2015-01-10
  • code.google.com https://code.google.com/p/google-security-research/issues/detail?id=121 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/71992 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-19 Data Processing Errors

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.