CVE-2025-41414Network attack vector

Unauthenticated service interruption via HTTP/2 requests

Published May 7, 2025 · Updated May 8, 2025

NULL pointer dereference in F5 BIG-IP, BIG-IP Next CNF, and BIG-IP Next SPK allows remote attackers to terminate TMM via requests. With both HTTP/2 client and server profiles attached to a virtual server, an undisclosed request reaches a null pointer dereference in TMM; F5 has not named the pointer or code locus. The request requires that profile configuration and interrupts traffic handled by the terminated TMM.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in F5 BIG-IP, BIG-IP Next CNF, and BIG-IP Next SPK allows remote attackers to terminate TMM via requests. With both HTTP/2 client and server profiles attached to a virtual server, an undisclosed request reaches a null pointer dereference in TMM; F5 has not named the pointer or code locus. The request requires that profile configuration and interrupts traffic handled by the terminated TMM.

The record

CVE
CVE-2025-41414
Published
May 7, 2025
Updated
May 8, 2025
Vendor
F5 Networks
Product
BIG-IP
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2025CVE publishedPublication date reported by the CVE source.
  2. May 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15.1.0 <*
  2. Affected versionversion=16.1.0 <16.1.5
  3. Affected versionversion=17.1.0 <17.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

F5 Networks · BIG-IPversion=15.1.0 <*; version=16.1.0 <16.1.5; version=17.1.0 <17.1.2
F5 Networks · BIG-IP Next CNFversion=1.1.0 <1.4.0
F5 Networks · BIG-IP Next SPKversion=1.7.0 <1.7.9; version=1.8.0 <2.0.0

Published CVSS scores

8.7F5CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
7.5F5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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