PT-2025-42323 · F5 · F5 Big-Ip

Published 2025-10-15 · Updated 2025-10-31 · CVE-2025-48008

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions F5 BIG-IP (affected versions not specified)

Description When a TCP profile with Multipath TCP (MPTC) enabled is configured on a virtual server, undisclosed traffic, along with conditions beyond the attacker's control, can cause the Traffic Management Microkernel (TMM) to terminate. The Traffic Management Microkernel (TMM) is a core component responsible for network traffic processing. Multipath TCP (MPTC) is a protocol that allows a TCP connection to use multiple network paths simultaneously.

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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2025-48008

Affected Products

F5 Big-Ip

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-48008 · Security Note
• https://osv.dev/vulnerability/CVE-2025-48008 · Vendor Advisory
• https://my.f5.com/manage/s/article/K000150614 · Vendor Advisory
• https://t.me/aptreports/23110 · Telegram Post
• https://reddit.com/r/f5networks/comments/1okn55c/factchecking_the_deep_specter_report_on_f5 · Reddit Post
• https://t.me/cveNotify/139698 · Telegram Post
• https://twitter.com/CVEnew/status/1978545089543860418 · Twitter Post