8.4

CVE-2013-2094: Linux Kernel Privilege Escalation Vulnerability

KEV
Analyzed
AliasesRHSA-2013:0830RHSA-2013:0832RHSA-2013:0840
Published 14-05-2013Last modified 22-10-2025

Vulnerability summary

CVE-2013-2094 is a high (CVSS 8.4) Numeric Errors vulnerability in Linux Kernel. It is known to be exploited: CISA lists it, first on 15-09-2022. EPSS estimates a 47.71% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities. 4 public exploits are recorded.

Priority
Act nowlisted as exploited

Listed as exploited by CISA (15-09-2022)

Source freshness unavailable

How is this decided?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
47.71%
0%100%
High · 0.00 pp in 30 days
KEVExploited in the wildCritical · listed in 1 catalog
RansomwareNot flaggedNo ransomware use recorded.
Public exploits4reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 2
DSA-2669-1RHSA-2013:0829

Timeline

  1. 14-05-2013
    PublishedVulnerability first disclosed.
  2. 15-09-2022
    Added to CISA KEVExploitedLinux Kernel Privilege Escalation Vulnerability
  3. 06-10-2022
    CISA remediation dueDeadline passedApply updates per vendor instructions.
  4. 22-10-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

47.71%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

No change 0.00 pp

From 47.71% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
15-09-2022
Federal due date
06-10-2022
ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

CISA required action

Apply updates per vendor instructions. git.kernel.org/pub/… nvd.nist.gov/vuln/detail/CVE-2013-2094

Public exploits

4 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • exploit-databaselocallinuxUnverified

    Linux Kernel 2.6.32 < 3.x (CentOS 5/6) - 'PERF_EVENTS' Local Privilege Escalation (1)

    Maturity: poc

  • exploit-databaselocallinux_x86-64Verified

    Linux Kernel 3.2.0-23/3.5.0-23 (Ubuntu 12.04/12.04.1/12.04.2 x64) - 'perf_swevent_init' Local Privilege Escalation (3)

    Maturity: weaponized

Show all 4 exploits
  • exploit-databaselocallinux_x86-64Verified

    Linux Kernel < 3.8.9 (x86-64) - 'perf_swevent_init' Local Privilege Escalation (2)

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat21 products
  • kernel< 0:2.6.32-358.6.2.el6 | < 0:2.6.32-279.25.2.el6 | < 0:2.6.32-220.34.2.el6 | < 0:2.6.32-131.39.1.el6
  • kernel-bootwrapper< 0:2.6.32-358.6.2.el6 | < 0:2.6.32-279.25.2.el6 | < 0:2.6.32-220.34.2.el6 | < 0:2.6.32-131.39.1.el6
  • kernel-debug< 0:2.6.32-358.6.2.el6 | < 0:2.6.32-279.25.2.el6 | < 0:2.6.32-220.34.2.el6 | < 0:2.6.32-131.39.1.el6
  • kernel-debug-debuginfo< 0:2.6.32-358.6.2.el6 | < 0:2.6.32-279.25.2.el6 | < 0:2.6.32-220.34.2.el6 | < 0:2.6.32-131.39.1.el6
  • kernel-debug-devel< 0:2.6.32-358.6.2.el6 | < 0:2.6.32-279.25.2.el6 | < 0:2.6.32-220.34.2.el6 | < 0:2.6.32-131.39.1.el6
Ubuntu13 products
  • linux< 3.11.0-12.19 | < 4.2.0-16.19
  • linux-aws< 4.4.0-1002.2 | < 4.4.0-1001.10
  • linux-flo< 3.4.0-5.22
  • linux-gke< 4.4.0-1003.3
  • linux-goldfish< 3.4.0-4.27
Debian1 product
  • linux< 3.8.11-1
Linux1 product
  • linux_kernel< 3.0.75 | ≥ 3.1, < 3.2.45 | ≥ 3.3, < 3.4.42 | ≥ 3.5, < 3.8.9

4 vendors · 36 products

References

55 links
Show all 55 references