CVE-2015-5516

Memory leak in the last hop kernel module in F5 BIG-IP LTM, GTM, and Link Controller 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.x before HF6, BIG-IP AAM 11.4.x, 11.5.x before 11.5.3 HF2 and 11.6.0 before HF6, BIG-IP AFM and PEM 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP Analytics 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP APM and ASM 10.1.0 through 10.2.4, 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP Edge Gateway, WebAccelerator, and WOM 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, and 11.3.0, BIG-IP PSM 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, 11.3.x, and 11.4.x before 11.4.1 HF, Enterprise Manager 3.0.0 through 3.1.1, BIG-IQ Cloud and Security 4.0.0 through 4.5.0, BIG-IQ Device 4.2.0 through 4.5.0, and BIG-IQ ADC 4.5.0 might allow remote attackers to cause a denial of service (memory consumption) via a large number of crafted UDP packets.

Published: 2016-01-20 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-5516 is rated Moderate Risk (56.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.63%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2015-5516

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 2025-03-30 2.82% 1.63% -1.19%
2 2025-03-29 1.63% 2.82% +1.19%
3 2025-03-17 — 1.63% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-5516

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
No account or special rights needed—anonymous or random user is enough.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2015-5516

Affected software / configurations for CVE-2015-5516

Vendor Product Version Raw CPE
f5 big-iq_application_delivery_controller 4.5.0 cpe:2.3:a:f5:big-iq_application_delivery_controller:4.5.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.0.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.0.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.0.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.0.1:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.1.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.1.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.2.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.2.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.2.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.2.1:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.2.2 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.2.2:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.2.3 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.2.3:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 10.2.4 cpe:2.3:a:f5:big-ip_local_traffic_manager:10.2.4:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.0.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.0.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.1.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.1.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.2.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.2.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.2.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.2.1:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.3.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.3.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.4.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.4.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.4.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.4.1:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.5.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.5.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.5.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.5.1:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.5.2 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.5.2:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.5.3 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.5.3:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 11.6.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 10.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:10.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 10.2.0 cpe:2.3:a:f5:big-ip_access_policy_manager:10.2.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 10.2.1 cpe:2.3:a:f5:big-ip_access_policy_manager:10.2.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 10.2.2 cpe:2.3:a:f5:big-ip_access_policy_manager:10.2.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 10.2.3 cpe:2.3:a:f5:big-ip_access_policy_manager:10.2.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 10.2.4 cpe:2.3:a:f5:big-ip_access_policy_manager:10.2.4:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.0.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.0.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.2.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.2.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.2.1 cpe:2.3:a:f5:big-ip_access_policy_manager:11.2.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.3.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.3.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.4.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.4.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.4.1 cpe:2.3:a:f5:big-ip_access_policy_manager:11.4.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.5.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.5.1 cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.5.2 cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.5.3 cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.6.0 cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 10.1.0 cpe:2.3:a:f5:big-ip_edge_gateway:10.1.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 10.2.0 cpe:2.3:a:f5:big-ip_edge_gateway:10.2.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 10.2.1 cpe:2.3:a:f5:big-ip_edge_gateway:10.2.1:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 10.2.2 cpe:2.3:a:f5:big-ip_edge_gateway:10.2.2:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 10.2.3 cpe:2.3:a:f5:big-ip_edge_gateway:10.2.3:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 10.2.4 cpe:2.3:a:f5:big-ip_edge_gateway:10.2.4:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 11.0.0 cpe:2.3:a:f5:big-ip_edge_gateway:11.0.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 11.1.0 cpe:2.3:a:f5:big-ip_edge_gateway:11.1.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 11.2.0 cpe:2.3:a:f5:big-ip_edge_gateway:11.2.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 11.2.1 cpe:2.3:a:f5:big-ip_edge_gateway:11.2.1:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 11.3.0 cpe:2.3:a:f5:big-ip_edge_gateway:11.3.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 10.1.0 cpe:2.3:a:f5:big-ip_application_security_manager:10.1.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 10.2.0 cpe:2.3:a:f5:big-ip_application_security_manager:10.2.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 10.2.1 cpe:2.3:a:f5:big-ip_application_security_manager:10.2.1:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 10.2.2 cpe:2.3:a:f5:big-ip_application_security_manager:10.2.2:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 10.2.3 cpe:2.3:a:f5:big-ip_application_security_manager:10.2.3:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 10.2.4 cpe:2.3:a:f5:big-ip_application_security_manager:10.2.4:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.0.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.0.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.1.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.1.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.2.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.2.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.2.1 cpe:2.3:a:f5:big-ip_application_security_manager:11.2.1:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.3.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.3.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.4.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.4.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.4.1 cpe:2.3:a:f5:big-ip_application_security_manager:11.4.1:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.5.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.5.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.5.1 cpe:2.3:a:f5:big-ip_application_security_manager:11.5.1:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.5.2 cpe:2.3:a:f5:big-ip_application_security_manager:11.5.2:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.5.3 cpe:2.3:a:f5:big-ip_application_security_manager:11.5.3:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 11.6.0 cpe:2.3:a:f5:big-ip_application_security_manager:11.6.0:*:*:*:*:*:*:*
f5 big-iq_security 4.0.0 cpe:2.3:a:f5:big-iq_security:4.0.0:*:*:*:*:*:*:*
f5 big-iq_security 4.1.0 cpe:2.3:a:f5:big-iq_security:4.1.0:*:*:*:*:*:*:*
f5 big-iq_security 4.2.0 cpe:2.3:a:f5:big-iq_security:4.2.0:*:*:*:*:*:*:*
f5 big-iq_security 4.3.0 cpe:2.3:a:f5:big-iq_security:4.3.0:*:*:*:*:*:*:*
f5 big-iq_security 4.4.0 cpe:2.3:a:f5:big-iq_security:4.4.0:*:*:*:*:*:*:*
f5 big-iq_security 4.5.0 cpe:2.3:a:f5:big-iq_security:4.5.0:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager 10.1.0 cpe:2.3:a:f5:big-ip_wan_optimization_manager:10.1.0:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager 10.2.0 cpe:2.3:a:f5:big-ip_wan_optimization_manager:10.2.0:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager 10.2.1 cpe:2.3:a:f5:big-ip_wan_optimization_manager:10.2.1:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager 10.2.2 cpe:2.3:a:f5:big-ip_wan_optimization_manager:10.2.2:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager 10.2.3 cpe:2.3:a:f5:big-ip_wan_optimization_manager:10.2.3:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager 10.2.4 cpe:2.3:a:f5:big-ip_wan_optimization_manager:10.2.4:*:*:*:*:*:*:*

References for CVE-2015-5516

cvelogic Threat Intelligence