CVE-2018-14634
An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or…
- 7.8HighCVSS base score
- 14.7%Exploitation in 30 daysEPSS · top 3.3% of all CVEs
- YesKnown exploitedin CISA's KEV since 26 Jan 2026
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Linux Kernel Integer Overflow Vulnerability.
- Added
- 26 Jan 2026
- Fix due (US federal)
- 16 Feb 2026
- Used by ransomware
- Not known
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 26 Jan 2026.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits2
Exploit-DB1 entry
- Linux Kernel 2.6.x / 3.10.x / 4.14.x (RedHat / Debian / CentOS) (x64) - 'Mutagen Astronomy' Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 45516local, linux_x86-64published 26 Sept 2018Not verified
References tagged exploit1 reference
- 45516 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 2 months later
· 2 months later
Published
- 7 years later
· 7 years later
Added to CISA KEV
Known exploited in the wild
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | High7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.0 | High7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 14.7% · top 3.3% of all CVEs (10 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 2.6.x, 3.10.x, 4.14.x
References
23
- RHSA-2018:3540 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://security.netapp.com/advisory/ntap-20190204-0002/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:2925 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3591 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 45516 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- USN-3775-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:2933 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3779-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:2748 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3590 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3775-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:2763 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 105407 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2018:2924 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3586 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3643 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2846 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20180925 Integer overflow in Linux's create_elf_tables() (CVE-2018-14634) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14634 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.f5.com/csp/article/K20934447?utm_source=f5support&%3Butm_medium=RSS (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security.paloaltonetworks.com/CVE-2018-14634 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20210720 CVE-2021-33910: Denial of service (stack exhaustion) in systemd (PID 1) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14634 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-6537 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-14634)Record last updated .