CVE-2018-5503: On F5 BIG-IP versions 13.0.0 - 13.1.0.3 or 12.0.0 - 12.1.3.1, TMM may restart when processing a specifically crafted page through a virtual server with an…

PriorityP338high7.5CVSS 3.0

AVNACLPRNUINSUCNINAH

EPSS

1.78%

75.8th percentile

On F5 BIG-IP versions 13.0.0 - 13.1.0.3 or 12.0.0 - 12.1.3.1, TMM may restart when processing a specifically crafted page through a virtual server with an associated PEM policy that has content insertion as an action.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
f5	big-ip_pem	—	—
f5	big-ip_policy_enforcement_manager	>= 12.0.0 < 12.1.3.2	12.1.3.2
f5	big-ip_policy_enforcement_manager	>= 13.0.0 < 13.1.0.4	13.1.0.4
f5_networks_inc	big-ip	—	—
f5_networks_inc	big-ip	—	—

CVSS provenance

nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.