Linux Kernel Integer Overflow Vulnerability
The Linux Foundation — kernel
An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable.
7.8
14.7%
Vector breakdown
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- Sep 25, 2018
- Modified
- Jun 17, 2026
- Added to KEV
- Jan 26, 2026
- Federal patch due
- Feb 16, 2026
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
1 foundWeaponization
Public repositories whose name or description references CVE-2018-14634, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
References
- openwall.com
- securityfocus.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- bugzilla.redhat.com
- security.netapp.com
- security.paloaltonetworks.com
- support.f5.com
- usn.ubuntu.com
- usn.ubuntu.com
- usn.ubuntu.com
Frequently asked questions
What is CVE-2018-14634?
An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable.
How severe is CVE-2018-14634?
CVE-2018-14634 has a CVSS base score of 7.8 out of 10 (CVSS 3.0).
Is CVE-2018-14634 actively exploited in the wild?
Yes. CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jan 26, 2026, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2018-14634?
14.7% - meaning FIRST.org's EPSS model estimates a 14.7% probability this vulnerability will be exploited in the wild within 30 days (96% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2018-14634?
We found 1 public GitHub repository referencing CVE-2018-14634, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2018-14634?
CVE-2018-14634 is classified under CWE-190.
Cross-checked against
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