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CVE-2018-14634

HighPublished

Linux Kernel Integer Overflow Vulnerability

Published: Sep 25, 2018
Updated: Jan 27, 2026
Assigning CNA: redhat
Evidence observed: Sep 26, 2018

Primary CVSS

7.8/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

14.7%

Moderate · next 30 days

Percentile: 96.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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.

Sources

cve-2018-14634Exploit
proof-of-concept (PoC) for linux dists based on Debian, CentOS and RedHat - exploit 1
Linux Kernel 2.6.x / 3.10.x / 4.14.x (RedHat / Debian / CentOS) (x64) - 'Mutagen Astronomy' Local Privilege EscalationExploit
Qualys Corporation · linux_x86-64 · Sep 26, 2018

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