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CVE-2018-14634· NVD / CVE Program· CNA redhat

An integer overflow flaw was found in the Linux kernel's create_elf_tables() function.

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.

HighCVSS 7.8 · v3.0KEVWeaponized Fix available
Published
Sep 25, 2018
Updated
Jun 16, 2026
EPSS
14.7% · 97th percentile
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JSON

Action score

65

This week

Don’t wait for the next maintenance window.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
4 / 30 · 14.7%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · redhat
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Jan 26, 2026. That signals real attacks, not theory.

Remediation deadline for government agencies: Feb 16, 2026.

Affected systems

VendorProduct
linuxlinux kernel
paloaltonetworkspan-os
f5big-ip access policy manager
f5big-ip advanced firewall manager
f5big-ip analytics
f5big-ip application acceleration manager
f5big-ip application security manager
f5big-ip domain name system
f5big-ip edge gateway
f5big-ip fraud protection service
f5big-ip global traffic manager
f5big-ip link controller

and 16 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • paloaltonetworks pan-os7.1.0 and later · before 7.1.23
  • paloaltonetworks pan-os8.0.0 and later · before 8.0.16
  • paloaltonetworks pan-os8.1.0 and later · before 8.1.7

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • The Linux Foundation kernel

    • 2.6.x, 3.10.x, 4.14.xaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 4.12.6-14.12.6-1
Debian:8linuxbefore 3.16.59-13.16.59-1
Red Hat:enterprise_linux:6::clientkernelbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-abi-whitelistsbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-debugbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-debug-debuginfobefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-debug-develbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-debuginfobefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-debuginfo-common-i686before 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-debuginfo-common-x86_64before 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-develbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-docbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-firmwarebefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientkernel-headersbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientperfbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientperf-debuginfobefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientpython-perfbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::clientpython-perf-debuginfobefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::serverkernel-bootwrapperbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::serverkernel-debuginfo-common-ppc64before 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::serverkernel-debuginfo-common-s390xbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::serverkernel-kdumpbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::serverkernel-kdump-debuginfobefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6
Red Hat:enterprise_linux:6::serverkernel-kdump-develbefore 0:2.6.32-754.6.3.el60:2.6.32-754.6.3.el6

+96

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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Debian:linux4.12.6-1 · Debian:12Package registry (OSV)
Red Hat:kernel0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-abi-whitelists0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-debug0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-debug-debuginfo0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-debug-devel0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-debuginfo0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-debuginfo-common-x86_640:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-devel0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-doc0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-headers0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-tools0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
Red Hat:kernel-tools-debuginfo0:3.10.0-862.14.4.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
SUSE:kernel-bigmem3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-bigsmp3.0.101-0.47.106.50.1 · SUSE:Linux Enterprise Server 11 SP3-LTSSPackage registry (OSV)
SUSE:kernel-default3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-docs3.0.101-108.71.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4Package registry (OSV)
SUSE:kernel-ec23.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-pae3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-ppc643.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-source3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-syms3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-trace3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kernel-xen3.0.101-108.71.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
SUSE:kgraft-patch-SLE12-SP1_Update_311-2.5.1 · SUSE:Linux Enterprise Server for SAP Applications 12 SP1Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Exploit-DB entry ×1
  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2018-09-26
Proof-of-concept repository on GitHubstars:82018-10-08

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoCsame day
  3. CISA KEV+2679 d
  4. TodaySep 29, 2026+2926 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

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References

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