CVE-2013-2094Linux Kernel Privilege Escalation Vulnerability

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.

8.4 HIGHEPSS 47.70%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-16 23:52 UTC

OverviewCVSS details

8.4HIGHCVSS 3.1

Score source: CISA-ADP
NVD status: Analyzed
Published: May 14, 2013
Assigner: redhat

Affected

linux kernel (linux)

Versions: before 3.0.75 · 3.1 before 3.2.45
Fixed in: 3.0.75, 3.2.45, 3.4.42

All affected versions →

Exploitation

Public exploit: Yes · 2 references
CISA KEV: Listed · Sep 15, 2022
KEV due date: Oct 6, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

47.70%chance of exploitation in 30 days

Higher than 98.85% of CVEs

CVSS 3.1 · CISA-ADP

8.4High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

7.2High

AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Local
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
8.4	HIGH	3.1CISA-ADP	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.2	HIGH	2.0NVD	AV:L/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Oct 6, 2022

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Details

CVE ID: CVE-2013-2094
Status: Analyzed
Assigner (CNA): redhat
Published: May 14, 2013
Last modified: 2026-06-16 23:52 UTC
Weaknesses: CWE-189

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 15:05 UTC.