CVE-2018-14634

Exp

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.

Published: 2018-09-25 Last update: 2026-01-27 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-14634 is rated Critical Active Threat (86.2/100): CVSS High severity, with high exploitation likelihood (EPSS 20.57%, 96th percentile). CISA KEV confirms active exploitation (added 2026-01-26) affecting Linux / Kernel. a weakness (CWE-190) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2018-14634

Name: Linux Kernel Integer Overflow Vulnerability · CISA KEV detail

Exploit added: 2026-01-26

Action due: 2026-02-16

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.

Public exploit references (Exploit-DB) for CVE-2018-14634

EDB-ID Source Kind Published Link
45516 exploit_db edb 2018-09-26 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-14634

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-17 24.09% 20.57% -3.52%
2 2026-05-13 25.62% 24.09% -1.53%
3 2026-05-02 — 25.62% —

Full EPSS history (53 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-14634

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2018-14634

OS Trackers for CVE-2018-14634

vendor priority summary link
debian not yet assigned CVE-2018-14634 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-14634
redhat high — https://access.redhat.com/security/cve/CVE-2018-14634
suse medium CVE-2018-14634 severity moderate: SUSE including 169 source package names (kernel-3.10.0-862.14.4.el7, kernel-abi-whitelists-3.10.0-862.14.4.el7, …), 398 product×package rows across 49 product lines (HPE Helion OpenStack 8, SLES for SAP Applications 11 SP3, … (49 product lines)): Fixed 209, Known Not Affected 189. https://www.suse.com/security/cve/CVE-2018-14634/
ubuntu high CVE-2018-14634 high priority: Ubuntu including 77 source packages (linux, linux-aws, …), 620 status rows across 10 suites (bionic, cosmic, disco, focal, jammy, noble, oracular, trusty, upstream, xenial): DNE 392, not-affected 131, released 88, ignored 9. https://ubuntu.com/security/CVE-2018-14634

Affected software / configurations for CVE-2018-14634

Vendor Product Version Raw CPE
paloaltonetworks pan-os >= 7.1.0, < 7.1.23 cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
paloaltonetworks pan-os >= 8.0.0, < 8.0.16 cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
paloaltonetworks pan-os >= 8.1.0, < 8.1.7 cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_webaccelerator >= 11.2.1, < 11.6.4 cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
f5 big-ip_webaccelerator >= 12.1.0, < 12.1.5 cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
f5 big-ip_webaccelerator >= 13.0.0, < 13.1.1.5 cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
f5 big-ip_webaccelerator >= 14.0.0, < 14.0.1.1 cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
f5 big-ip_webaccelerator >= 14.1.0, < 14.1.0.6 cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
f5 big-iq_centralized_management >= 5.0.0, <= 5.4.0 cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*
f5 big-iq_centralized_management >= 6.0.0, <= 6.0.1 cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*
f5 big-iq_centralized_management >= 7.0.0, <= 7.1.0 cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*
f5 big-iq_centralized_management 4.6.0 cpe:2.3:a:f5:big-iq_centralized_management:4.6.0:*:*:*:*:*:*:*
f5 big-iq_cloud_and_orchestration 1.0.0 cpe:2.3:a:f5:big-iq_cloud_and_orchestration:1.0.0:*:*:*:*:*:*:*
f5 enterprise_manager 3.1.1 cpe:2.3:a:f5:enterprise_manager:3.1.1:*:*:*:*:*:*:*
f5 iworkflow >= 2.2.0, <= 2.3.0 cpe:2.3:a:f5:iworkflow:*:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller >= 5.0.0, <= 5.1.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:*:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller 4.4.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:4.4.0:*:*:*:*:*:*:*
linux linux_kernel >= 2.6.0, <= 2.6.39.4 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 3.10, <= 3.10.102 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.14, <= 4.14.54 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References for CVE-2018-14634

URL Tags
http://www.openwall.com/lists/oss-security/2021/07/20/2 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/105407 Third Party Advisory VDB Entry Broken Link
https://access.redhat.com/errata/RHSA-2018:2748 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2763 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2846 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2924 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2925 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2933 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3540 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3586 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3590 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3591 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3643 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14634 Issue Tracking Third Party Advisory
https://security.netapp.com/advisory/ntap-20190204-0002/ Patch Third Party Advisory
https://security.paloaltonetworks.com/CVE-2018-14634 Third Party Advisory
https://support.f5.com/csp/article/K20934447?utm_source=f5support&amp%3Butm_medium=RSS Third Party Advisory
https://usn.ubuntu.com/3775-1/ Third Party Advisory
https://usn.ubuntu.com/3775-2/ Third Party Advisory
https://usn.ubuntu.com/3779-1/ Third Party Advisory
https://www.exploit-db.com/exploits/45516/ Exploit Third Party Advisory VDB Entry
https://www.openwall.com/lists/oss-security/2018/09/25/4 Exploit Mailing List Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14634 US Government Resource
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