CVE DATABASE / CVE-2018-14634

CVE-2018-14634

Linux Kernel Integer Overflow Vulnerability

CVSS 7.8 · HIGH ⚠ CISA KEV — ACTIVELY EXPLOITED

On the CISA KEV catalog

Confirmed exploited in the wild. Added 2026-01-26. Federal remediation 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.

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.

CVSS 3.0 breakdown

Base score	7.8 (HIGH)
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector	LOCAL
Attack complexity	LOW
Privileges required	LOW
User interaction	NONE
Scope	UNCHANGED
Confidentiality	HIGH
Integrity	HIGH
Availability	HIGH

Weakness type (CWE)

CWE-190

Affected products

Paloaltonetworks pan-osF5 big-ip access policy managerF5 big-ip advanced firewall managerF5 big-ip analyticsF5 big-ip application acceleration managerF5 big-ip application security managerF5 big-ip domain name systemF5 big-ip edge gatewayF5 big-ip fraud protection serviceF5 big-ip global traffic managerF5 big-ip link controllerF5 big-ip local traffic managerF5 big-ip policy enforcement managerF5 big-ip webacceleratorF5 big-iq centralized managementF5 big-iq cloud and orchestrationF5 enterprise managerF5 iworkflowF5 traffix signaling delivery controllerLinux linux kernel

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References

Data: NIST NVD + CISA KEV. NVD last modified 2026-01-27. Always verify against the vendor advisory before acting.