Exploited vulnerabilities / CVE-2018-14634
Confirmed exploited · privilege escalation · Linux KernelCVE-2018-14634
Linux Kernel privilege escalation, confirmed exploited in the wild.
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.
| CISA's name for it | Linux Kernel Integer Overflow Vulnerability |
|---|---|
| Vendor and product | Linux · Kernel |
| Type | privilege escalation · CWE-190 |
| Exploited | Confirmed by CISA listed 26 January 2026 |
| Likelihood | one of the most likely to be exploited of every vulnerability tracked |
| Deadline | 16 February 2026 · already passed |
| Used in ransomware | Not reported |
| Advisories | git.kernel.org ↗ · www.kernel.org ↗ · www.cve.org ↗ · access.redhat.com ↗ |
Three steps, in this order
Install the update on every affected system, servers and workstations alike.
Escalation bugs are chained after a first foothold: check for other exposures an attacker could start from.
Review who holds administrative rights, and alert on new ones.
| CISA's 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. |
|---|
Know before someone else finds it
Threat Landscape Monitoring fingerprints the software your internet-facing hosts disclose and matches it, every day, against this list and the exploitation scores. When a new entry touches something you run, you are told once, with the host and the fix. The free plan covers one domain.
CVE-2018-14634 in short
Is CVE-2018-14634 being exploited?
Yes. CISA added CVE-2018-14634 to its Known Exploited Vulnerabilities catalogue on 26 January 2026, which it does only on evidence of exploitation in the wild.
What is the CISA deadline for CVE-2018-14634?
US federal agencies must remediate it by 16 February 2026. Everyone else should treat that date as the latest safe point to patch an internet-facing system.
How likely is CVE-2018-14634 to be exploited in the next 30 days?
FIRST's Exploit Prediction Scoring System gives it 15%, the 96th percentile of every CVE it scores.
How do I fix CVE-2018-14634?
Install the update on every affected system, servers and workstations alike. Escalation bugs are chained after a first foothold: check for other exposures an attacker could start from. Review who holds administrative rights, and alert on new ones.
Other Linux vulnerabilities being exploited
| CVE | Product | Type | Listed |
|---|---|---|---|
| CVE-2026-46300 | Kernel | exploited vulnerability | 28 October 2026 |
| CVE-2025-39964 | Kernel | exploited vulnerability | 18 September 2026 |
| CVE-2026-53266 | Kernel | memory corruption | 18 September 2026 |
| CVE-2025-39682 | Kernel | exploited vulnerability | 18 September 2026 |
| CVE-2026-53362 | Kernel | privilege escalation | 27 August 2026 |
| CVE-2022-0995 | Kernel | privilege escalation | 26 August 2026 |
Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.