What is CVE-2014-4699?

CVE-2014-4699 is a vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). Published 2014-07-09.

Is CVE-2014-4699 known to be exploited?

63 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux Kernel

CVE-2014-4699

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted application that makes ptrace and fork system calls.

Vulnerability class: Race Condition

Published 2014-07-09 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 6.9 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.023 (82.9th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Linux Kernel
Canonical Ubuntu Linux — versions 10.04, 12.04, 13.10
Debian Linux — versions 7.0

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

Public proof-of-concept exploits

References

linux.oracle.com/errata/ELSA-2014-3047.html (Third Party Advisory)
www.ubuntu.com/usn/USN-2269-1 (vendor-advisory, Third Party Advisory)
www.ubuntu.com/usn/USN-2274-1 (vendor-advisory, Third Party Advisory)
www.ubuntu.com/usn/USN-2268-1 (vendor-advisory, Third Party Advisory)
www.ubuntu.com/usn/USN-2267-1 (vendor-advisory, Third Party Advisory)
www.osvdb.org/108754 (vdb-entry, Broken Link)
secunia.com/advisories/60220 (Third Party Advisory, third-party-advisory)
www.openwall.com/lists/oss-security/2014/07/04/4 (mailing-list, Mailing List, Third Party Advisory)
www.ubuntu.com/usn/USN-2271-1 (vendor-advisory, Third Party Advisory)
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.11 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2014-4699?: CVE-2014-4699 is a vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). Published 2014-07-09.
Is CVE-2014-4699 known to be exploited?: 63 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.