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CVE-2018-14634: Linux Kernel Integer Overflow Vulnerability

criticalknown exploitedpublic exploitCVE-2018-14634
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Linux Kernel contains an integer overflow vulnerability in the create_elf_tables() function which could allow an unprivileged local user with access to SUID (or otherwise privileged) binary to escalate their privileges on the system.

CSIRTS triage

vendor: Linuxproduct: KernelPrivilege escalation
What
An integer overflow vulnerability could allow unprivileged local users to escalate their privileges.
Who is affected
Local users with access to SUID binaries are affected.
Urgency
Remediation is critical due to active exploitation and high severity.
Action
Apply the latest kernel patches provided by the Linux distribution.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-01-26
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-14634

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2018-14634coverage & exploitation statusNVD · CVE.org

Recent advisories for Linux Kernel Integer

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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