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Vulnerability Assessment

Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. CISA has confirmed active exploitation in the wild. Public proof-of-concept exploit code is available. EPSS exploitation probability: 69.33%.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

Act Now Prioritize within 24-48h. Why: In CISA KEV with patch available.
Exploited in the wild (CISA KEV) Patch available 69.3% exploitation probability (EPSS)

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AnalysisAI

The futex_requeue function in kernel/futex.c in the Linux kernel through 3.14.5 does not ensure that calls have two different futex addresses, which allows local users to gain privileges via a. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

The futex_requeue function in kernel/futex.c in the Linux kernel through 3.14.5 does not ensure that calls have two different futex addresses, which allows local users to gain privileges via a crafted FUTEX_REQUEUE command that facilitates unsafe waiter modification. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux Server Aus, Opensuse, Suse Linux Enterprise Desktop, Suse Linux Enterprise High Availability Extension. Version information: through 3.14.5.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Added to CISA KEV
Apr 21, 2026 - 15:31 CISA
CVE Published
Jun 07, 2014 - 14:55 cve.org
HIGH 7.8

DescriptionCVE.org

The futex_requeue function in kernel/futex.c in the Linux kernel through 3.14.5 does not ensure that calls have two different futex addresses, which allows local users to gain privileges via a crafted FUTEX_REQUEUE command that facilitates unsafe waiter modification.

Threat Intelligence Overview

Threat Score
6.6/10
Composite threat intelligence
EPSS Score
69.3%
Top 1% exploitable
Exploit
POC
Public exploit code exists
Data Quality
8 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV Yes
Public POC Yes
EPSS 69.3%
Patch available Yes
Active threat Yes
Deciding rule
In CISA KEV with patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
Active
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
High

Priority Score

193
Low Medium High Critical
KEV: +50
EPSS: +69
CVSS: +39
PoC: +20
Weaponized: +15
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:oracle:linux:5:-:*:*:*:*:*:*
cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:*
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References

Advisories & patches
PATCH https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=13fbca4c6ecd96ec1a1cfa2e4f2ce191fe928a5e PATCH https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a217887a7b658e2650c3feff22756ab80c7339 PATCH https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b3eaa9fc5cd0a4d74b18f6b8dc617aeaf1873270 PATCH https://github.com/torvalds/linux/commit/e9c243a5a6de0be8e584c604d353412584b592f8 ADVISORY https://vuldb.com/vuln/13463 REF http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e9c243a5a6de0be8e584c604d353412584b592f8 REF http://linux.oracle.com/errata/ELSA-2014-0771.html REF http://linux.oracle.com/errata/ELSA-2014-3037.html REF http://linux.oracle.com/errata/ELSA-2014-3038.html REF http://linux.oracle.com/errata/ELSA-2014-3039.html REF http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00014.html REF http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00018.html REF http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00025.html REF http://lists.opensuse.org/opensuse-security-announce/2014-07/msg00006.html REF http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html REF http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html REF http://openwall.com/lists/oss-security/2014/06/05/24 REF http://openwall.com/lists/oss-security/2014/06/06/20 REF http://rhn.redhat.com/errata/RHSA-2014-0800.html REF http://secunia.com/advisories/58500 REF http://secunia.com/advisories/58990 REF http://secunia.com/advisories/59029 REF http://secunia.com/advisories/59092 REF http://secunia.com/advisories/59153 REF http://secunia.com/advisories/59262 REF http://secunia.com/advisories/59309 REF http://secunia.com/advisories/59386 REF http://secunia.com/advisories/59599 REF http://www.openwall.com/lists/oss-security/2014/06/05/22 REF http://www.openwall.com/lists/oss-security/2021/02/01/4 REF http://www.securityfocus.com/bid/67906 REF http://www.securitytracker.com/id/1030451 REF http://www.ubuntu.com/usn/USN-2237-1 REF http://www.ubuntu.com/usn/USN-2240-1 REF https://bugzilla.redhat.com/show_bug.cgi?id=1103626 REF https://github.com/elongl/CVE-2014-3153 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-3153 REF https://www.openwall.com/lists/oss-security/2021/02/01/4

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