What is CVE-2018-14634?

CVE-2018-14634 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Integer Overflow flaw (CWE-190), affecting Linux kernel versions from 2.6.x, 3.10.x, 4.14.x onward. CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.

What is the CVSS score for CVE-2018-14634?

CVE-2018-14634 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2018-14634?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-14634 patch availability.

Is CVE-2018-14634 actively exploited?

Yes. CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild with a CVSS score of 7.8 (High severity).

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2018-14634

High KEV — Actively Exploited

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.

Package Linux Kernel

Published 2018-09-25

Last modified 2026-01-27

CVSS version 3.0

Patch available

Not yet patched

CVSS 3.0 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-190

CVE-2018-14634 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 2.6.x, 3.10.x, 4.14.x and later are affected. No fixed version recorded yet.

Affected from

≥ 2.6.x, 3.10.x, 4.14.x

References

23 total

Exploit-DB
https://www.exploit-db.com/exploits/45516/

Exploit Third Party Advisory VDB Entry
Openwall
https://www.openwall.com/lists/oss-security/2018/09/25/4

Exploit Mailing List Third Party Advisory
CISA
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14634

US Government Resource
Security
https://security.netapp.com/advisory/ntap-20190204-0002/

Patch Third Party Advisory
Openwall
http://www.openwall.com/lists/oss-security/2021/07/20/2

Mailing List Third Party Advisory

Showing 5 of 23 references View all on NVD

Details

CVE ID CVE-2018-14634

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2018-09-25

Modified 2026-01-27

KEV Yes

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2018-14634?

CVE-2018-14634 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 2.6.x, 3.10.x, 4.14.x onward . CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.
What is the CVSS score for CVE-2018-14634?

CVE-2018-14634 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2018-14634?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-14634 patch availability.
Is CVE-2018-14634 actively exploited?

Yes. CVE-2018-14634 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. It carries a CVSS score of 7.8 (High severity).