Last Modified: Jul 28, 2026
Affected Product(s):
BIG-IP PEM
Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.1.3.2, 17.1.3.4
Fixed In:
21.1.0.1, 21.0.0.3
Opened: Apr 10, 2026 Severity: 3-Major
When creating a subscriber/session with user-location-info greater than 8 bytes and attempting to extract it using a custom iRule filter in the PEM policy.
Unable to extract user-location-info using a custom iRule filter in the PEM policy.
Subscriber/session creation with user-location-info greater than 8 bytes (e.g., string length 0x + (2 * 8) = 18 characters). Example: 0x001300621A2B3C4D.
None
With the fix, user-location-info can now be extracted in all formats, with a maximum size of 13 bytes (equivalent to 28 characters in string length).