CVE-2018-14634

HIGH7.8

CISA KEV

Published 2018-09-25 · Updated 2026-06-17 · Source secalert@redhat.com

Summary

CVE-2018-14634 is a high-severity (CVSS 7.8) vulnerability in Linux Kernel. CISA added it to the Known Exploited Vulnerabilities catalog on January 26, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by February 16, 2026. CISA does not currently list it as used in ransomware campaigns. Linux has 32 vulnerabilities in the KEV catalog, 2 of them linked to ransomware.

All 32 known-exploited Linux vulnerabilities →

Description

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.

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

CWE-190CWE-190

CISA Known-Exploited Vulnerability

Product: Linux — Kernel

Name: Linux Kernel Integer Overflow Vulnerability

Date added: 2026-01-26 · Due: 2026-02-16

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.

References

View on NVD

More exploited Linux vulnerabilities

Most recently added to CISA KEV

CVE-2026-46300
Kernel — Linux Kernel Missing Initialization of a Variable Vulnerability
added 2026-10-28
CVE-2025-39964
Kernel — Linux Kernel Race Condition Vulnerability
added 2026-09-18
CVE-2026-53266
Kernel — Linux Kernel Out-of-Bounds Write Vulnerability
added 2026-09-18
CVE-2025-39682
Kernel — Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
added 2026-09-18
CVE-2026-53362
Kernel — Linux Kernel Unspecified Vulnerability
added 2026-08-27
CVE-2022-0995
Kernel — Linux Kernel Out-of-Bounds Write Vulnerability
added 2026-08-26

View all →

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