CVE-2018-14634
HighExploitedPublic exploitAn integer overflow flaw was found in the Linux kernel's create_elf_tables() function.
Published Sep 25, 2018 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2018-14634, UBUNTU-CVE-2018-14634
Key Facts
Patch immediately- CVE-2018-14634 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Big-Ip Access Policy Manager (F5), Big-Ip Advanced Firewall Manager (F5), Big-Ip Analytics (F5) and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 26, 2026. Public exploit code is available.
- EPSS estimates a 15% probability of exploitation in the next 30 days.
- Fixed versions are available, including dtrace-modules-3.8.13-118.24.3.el6uek 0.4.5-3.el6, dtrace-modules-3.8.13-118.24.3.el7uek 0.4.5-3.el7, Big-Ip Access Policy Manager 11.6.4.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
15%
Higher than 96.6% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-14634 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jan 26, 2026 | Feb 16, 2026 | Not reported |
| Industry KEV feed | Jan 26, 2026 | Feb 16, 2026 | Not reported |
| CIRCL KEV | Jan 26, 2026 | Feb 16, 2026 | Not reported |
| ENISA EUVD | Jan 26, 2026 | n/a | Not reported |
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.
Affected Products
373 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Big-Ip Access Policy ManagerF5 | See advisory | 11.6.4 |
| Big-Ip Advanced Firewall ManagerF5 | See advisory | 11.6.4 |
| Big-Ip AnalyticsF5 | See advisory | 11.6.4 |
| Big-Ip Application Acceleration ManagerF5 | See advisory | 11.6.4 |
| Big-Ip Application Security ManagerF5 | See advisory | 11.6.4 |
Patched Releases
dtrace-modules-3.8.13-118.24.3.el6uek
0.4.5-3.el6
dtrace-modules-3.8.13-118.24.3.el7uek
0.4.5-3.el7
Big-Ip Access Policy Manager
11.6.4
Big-Ip Advanced Firewall Manager
11.6.4
Big-Ip Analytics
11.6.4
Big-Ip Application Acceleration Manager
11.6.4
Big-Ip Application Security Manager
11.6.4
Big-Ip Domain Name System
11.6.4
Big-Ip Edge Gateway
11.6.4
Big-Ip Fraud Protection Service
11.6.4
Big-Ip Global Traffic Manager
11.6.4
Big-Ip Link Controller
11.6.4
Big-Ip Local Traffic Manager
11.6.4
Big-Ip Policy Enforcement Manager
11.6.4
Big-Ip Webaccelerator
11.6.4
Big-Iq Centralized Management
5.4.0
Iworkflow
2.3.0
Traffix Signaling Delivery Controller
5.1.0
kernel
0:2.6.32-431.93.2.el6, 0:3.10.0-514.61.1.el7, 2.6.32-754.6.3.el6, 3.10.0-862.14.4.el7, 4.14.26-46.32.amzn1
kernel-abi-whitelists
2.6.32-754.6.3.el6, 3.10.0-862.14.4.el7
kernel-bigmem
3.0.101-108.71.1
kernel-bigmem-base
3.0.101-108.71.1
kernel-bigmem-devel
3.0.101-108.71.1
kernel-bigsmp
3.0.101-0.47.106.50.1
kernel-bigsmp-base
3.0.101-0.47.106.50.1
Timeline
Publicly disclosed
Sep 25, 2018
Added to CISA KEV
Jan 26, 2026
Added to Industry KEV feed
Jan 26, 2026
Added to CIRCL KEV
Jan 26, 2026
Added to ENISA EUVD
Jan 26, 2026
Last updated
Aug 4, 2026
Weakness Type
- CWE-190 Integer Overflow or Wraparound
References
- advisoryRHSA-2018:2748
- advisoryRHSA-2018:2763
- advisoryRHSA-2018:2846
- advisoryRHSA-2018:2924
- advisoryRHSA-2018:2925
FAQ
Common Questions.
An integer overflow flaw was found in the Linux kernel's create_elf_tables() function.
Affected: Big-Ip Access Policy Manager (F5); Big-Ip Advanced Firewall Manager (F5); Big-Ip Analytics (F5), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 26, 2026.
Yes. It was added on Jan 26, 2026 with a federal remediation due date of Feb 16, 2026.
Public exploit code is available.
Fixed versions are available, including dtrace-modules-3.8.13-118.24.3.el6uek 0.4.5-3.el6, dtrace-modules-3.8.13-118.24.3.el7uek 0.4.5-3.el7, Big-Ip Access Policy Manager 11.6.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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