CVE-2018-14634
Linux — Linux Kernel Integer Overflow Vulnerability
Linux · in CISA KEV since 2026-01-26
CISA federal deadline · Overdue by 8 monthsCISA KEVActively Exploited
75
EVRS 75 of 100 Urgent
Patch This Cycle
Rank 956 of 2,960 tracked
Raised to the floor for a confirmed exploited vulnerability.
Why it scores 75
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and an EPSS probability of 0.147.
- CISA KEVApplied
- RansomwareDid not apply
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
No fixed version identified yetCISA required action
- This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see
- www.kernel.org
- www.cve.org/…/CVERecord?id=CVE-2018-14634
- access.redhat.com/…/RHSA-2018:3540
- nvd.nist.gov/…/CVE-2018-14634
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 7.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.147 (96.7th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Unknown or none | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2026-02-16 · CISA federal deadline · Overdue by 8 months | CISA KEV |
Description
What CISA says to do
- This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see
- www.kernel.org
- www.cve.org/…/CVERecord?id=CVE-2018-14634
- access.redhat.com/…/RHSA-2018:3540
- nvd.nist.gov/…/CVE-2018-14634
