SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5536

A remote attacker via undisclosed measures, may be able to exploit an F5 BIG-IP APM 13.0.0-13.1.0.7 or 12.1.0-12.1.3.5 virtual server configured with an APM per-request policy object and cause a memory leak in the APM module.

HIGH 7.5EPSS 2.33%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A remote attacker via undisclosed measures, may be able to exploit an F5 BIG-IP APM 13.0.0-13.1.0.7 or 12.1.0-12.1.3.5 virtual server configured with an APM per-request policy object and cause a memory leak in the APM module.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
2.33% probability · 83th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-772
Affected
f5/big-ip access policy manager
Source
f5sirt@f5.com
EPSS trend
0%3%5%27 October 2026: 2.33%27 October 202627 October 2026

EPSS 2.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.