Is CVE-2013-2094 being actively exploited?

Yes. CVE-2013-2094 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on September 15, 2022.

What is the CVSS score for CVE-2013-2094?

CVE-2013-2094 has a CVSS 3.1 base score of 8.4 (HIGH).

CVE-2013-2094

HIGH · CVSS 8.4CISA KEV: actively exploitedEPSS 47.7%EU EUVD: exploited

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

CVSS score: 8.4 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-189
EPSS score: 47.7% (99th percentile)
In CISA KEV: Yes, added September 15, 2022
In EU EUVD: Yes (EUVD-2013-2068)
Published: May 14, 2013
NVD last modified: June 16, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Linux Kernel Privilege Escalation Vulnerability

Added to the KEV catalog on September 15, 2022; federal remediation due October 6, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-2068 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

linux / linux kernel

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8176cced706b5e5d15887584150764894e94e02f(Not Applicable)
http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html(Third Party Advisory, VDB Entry)
http://lists.centos.org/pipermail/centos-announce/2013-May/019733.html(Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00008.html(Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html(Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html(Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00009.html(Third Party Advisory, VDB Entry)
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00017.html(Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03652.html(Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/03976.html(Third Party Advisory, VDB Entry)
http://lkml.indiana.edu/hypermail/linux/kernel/1304.1/04302.html(Third Party Advisory)
http://news.ycombinator.com/item?id=5703758(Third Party Advisory)
http://packetstormsecurity.com/files/121616/semtex.c(Exploit, Third Party Advisory, VDB Entry)
http://rhn.redhat.com/errata/RHSA-2013-0830.html(Third Party Advisory)
http://twitter.com/djrbliss/statuses/334301992648331267(Patch)
http://www.exploit-db.com/exploits/33589(Third Party Advisory, VDB Entry)
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9(Not Applicable)
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176(Mailing List, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2013/05/14/6(Mailing List, Third Party Advisory)
http://www.osvdb.org/93361(Broken Link)
http://www.reddit.com/r/netsec/comments/1eb9iw(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1825-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1826-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1827-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1828-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1836-1(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1838-1(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=962792(Issue Tracking)
https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f(Third Party Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094(US Government Resource)

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

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