How severe is CVE-2013-2094?

CVE-2013-2094 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2013-2094 being actively exploited?

Yes. CVE-2013-2094 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-09-15, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2013-2094?

CVE-2013-2094 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-2094?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2013-2094 have an EU (EUVD) identifier?

Yes. CVE-2013-2094 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2013-2068. It is also flagged as exploited in the EUVD (since 2022-09-15).

When was CVE-2013-2094 published?

CVE-2013-2094 was published on 2013-05-14 and last updated on 2026-06-16.

CVE-2013-2094

CVE-2013-2094 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 8.4. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-09-15). The underlying weakness is classified as CWE-189.

Key facts

Severity: High (CVSS 3.x base score 8.4)
CVSS v2: 7.2
EPSS exploit prediction: 48% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-09-15)
EU (EUVD) id: EUVD-2013-2068
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-09-15)
Weakness: CWE-189
Affected product: Linux Linux Kernel
Published: 2013-05-14
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2013-2094?: 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.
How severe is CVE-2013-2094?: CVE-2013-2094 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2013-2094 being actively exploited?: Yes. CVE-2013-2094 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-09-15, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2013-2094?: CVE-2013-2094 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-2094?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2013-2094 have an EU (EUVD) identifier?: Yes. CVE-2013-2094 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2013-2068. It is also flagged as exploited in the EUVD (since 2022-09-15).
When was CVE-2013-2094 published?: CVE-2013-2094 was published on 2013-05-14 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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