PT-2026-40650 · F5 · Big-Ip

Published 2026-05-13 · Updated 2026-05-17 · CVE-2026-40618

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions BIG-IP Virtual Edition (VE) (affected versions not specified) BIG-IP hardware platforms (affected versions not specified)

Description Undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate when an SSL profile is configured on a virtual server. This occurs on BIG-IP Virtual Edition (VE) without Intel QuickAssist Technology (QAT) or on BIG-IP hardware platforms where the crypto.hwacceleration database variable is set to disabled.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-131

Related Identifiers

CVE-2026-40618

Affected Products

Big-Ip

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-40618 · Security Note
• https://twitter.com/vuldb/status/2054860312114081946 · Twitter Post
• https://my.f5.com/manage/s/article/K000158082 · Patch, Vendor Advisory
• https://twitter.com/f1tym1/status/2055991602036785496 · Twitter Post