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CVE-2013-2094

Linux Kernel Privilege Escalation Vulnerability

  • High 8.4
  • Exploited: added to CISA KEV 15 Sep 2022
  • A public exploit reference is listed

Description

The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local users to gain privileges via a crafted perf_event_open system call.

Key facts

Published
14 May 2013
Last changed
22 Oct 2025
Assigned by
redhat
KEV added
15 Sep 2022
KEV fix due
6 Oct 2022
EPSS
47.709% likely to be exploited in the next 30 days, higher than 98.871% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 8.4CVSS 3.1, Highfrom CISA (ADP container)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
n/an/a
  • n/a (affected)

Timeline

  1. 14 May 2013 Published
  2. 15 Sep 2022 CVE-2013-2094 added to CISA KEV
  3. 15 Sep 2022 Added to the CISA KEV catalogue

References