# CVE-2013-2094: Linux Kernel Privilege Escalation Vulnerability

Source: https://junglewise.ai/threats/cve-2013-2094-linux-kernel-privilege-escalation-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-09-15. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2013-2094 · Severity: critical · CVSS 8.4 · Exploited in the wild · Published 2022-09-15

The perf_swevent_init function in kernel/events/core.c in the Linux kernel uses an incorrect integer data type when handling the attr.config value. This leads to an out-of-bounds access of the perf_swevent_enabled array, allowing local users to escalate privileges via a crafted perf_event_open system call.

Technologies: [Linux Kernel](https://junglewise.ai/threats/technologies/kernel). Vendors: [Linux](https://junglewise.ai/threats/vendors/linux).

## Quick answers

**Is CVE-2013-2094 exploited in the wild?** Yes. CVE-2013-2094 is known to be exploited in the wild, first recorded on 15 September 2022. Treat it as urgent.

**How severe is CVE-2013-2094?** Critical severity, with a CVSS score of 8.4, published 15 September 2022.

**Which products and versions are affected?** Linux Linux Kernel before 3.8.9.

**Is there a fix for CVE-2013-2094?** A patch was published on 2013-05-11: Linux kernel version 3.8.9 released with fix. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2013-2094 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2013-2094?** Check whether you run Linux Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Linux Linux Kernel before 3.8.9

## Timeline

- 2013-05-14: disclosed: Initial public disclosure and mailing list discussion.
- 2013-05-11: patched: Linux kernel version 3.8.9 released with fix.
- 2022-09-15: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

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