6.9
MEDIUM CVSS 4.0
CVE-2025-54500
Apache HTTP/2 Denial-of-Service Vulnerability
Description

An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit (HTTP/2 MadeYouReset Attack).  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

INFO

Published Date :

Aug. 13, 2025, 3:15 p.m.

Last Modified :

Aug. 13, 2025, 5:33 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-54500 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 F5 big-ip_access_policy_manager
2 F5 big-ip_next_cloud-native_network_functions
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM [email protected]
Solution
This information is provided by the 3rd party feeds.
  • Upgrade to one of the non-vulnerable versions listed in the F5 Solution K000152001.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-54500.

URL Resource
https://my.f5.com/manage/s/article/K000152001
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-54500 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-54500 weaknesses.

CAPEC-125: Flooding Flooding CAPEC-130: Excessive Allocation Excessive Allocation CAPEC-147: XML Ping of the Death XML Ping of the Death CAPEC-197: Exponential Data Expansion Exponential Data Expansion CAPEC-229: Serialized Data Parameter Blowup Serialized Data Parameter Blowup CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-469: HTTP DoS HTTP DoS CAPEC-482: TCP Flood TCP Flood CAPEC-486: UDP Flood UDP Flood CAPEC-487: ICMP Flood ICMP Flood CAPEC-488: HTTP Flood HTTP Flood CAPEC-489: SSL Flood SSL Flood CAPEC-490: Amplification Amplification CAPEC-491: Quadratic Data Expansion Quadratic Data Expansion CAPEC-493: SOAP Array Blowup SOAP Array Blowup CAPEC-494: TCP Fragmentation TCP Fragmentation CAPEC-495: UDP Fragmentation UDP Fragmentation CAPEC-496: ICMP Fragmentation ICMP Fragmentation CAPEC-528: XML Flood XML Flood

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-54500 vulnerability anywhere in the article.

  • CybersecurityNews
F5 Fixes HTTP/2 Vulnerability Enabling Massive DoS Attacks

F5 Networks has disclosed a new HTTP/2 vulnerability affecting multiple BIG-IP products that could allow remote attackers to launch denial-of-service attacks against corporate networks. The security f ... Read more

Published Date: Aug 16, 2025 (6 days, 7 hours ago)
  • SentinelOne
The Good, the Bad and the Ugly in Cybersecurity – Week 33

The Good | DoJ Charges $100M Fraud Ring & Seizes $1M in Crypto from BlackSuit Ransomware The DoJ has charged four Ghanaian nationals, Isaac Oduro Boateng (aka “Kofi Boat”), Inusah Ahmed (aka “Pascal”) ... Read more

Published Date: Aug 15, 2025 (1 week ago)
  • SentinelOne
The Good, the Bad and the Ugly in Cybersecurity – Week 33

The Good | DoJ Charges $100M Fraud Ring & Seizes $1M in Crypto from BlackSuit Ransomware The DoJ has charged four Ghanaian nationals, Isaac Oduro Boateng (aka “Kofi Boat”), Inusah Ahmed (aka “Pascal”) ... Read more

Published Date: Aug 15, 2025 (1 week ago)
  • CybersecurityNews
New HTTP/2 MadeYouReset Vulnerability Enables Large-Scale DDoS Attacks

Security researchers have identified a new denial-of-service (DoS) vulnerability in HTTP/2 implementations, referred to as MadeYouReset (CVE-2025-8671). This discovery represents a notable escalation ... Read more

Published Date: Aug 15, 2025 (1 week ago)
  • The Hacker News
New HTTP/2 'MadeYouReset' Vulnerability Enables Large-Scale DoS Attacks

Aug 14, 2025Ravie LakshmananServer Security / Vulnerability Multiple HTTP/2 implementations have been found susceptible to a new attack technique called MadeYouReset that could be explored to conduc ... Read more

Published Date: Aug 14, 2025 (1 week, 1 day ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-54500 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Aug. 13, 2025

    Action Type Old Value New Value
    Added Description An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit (HTTP/2 MadeYouReset Attack).  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    Added CWE CWE-770
    Added Reference https://my.f5.com/manage/s/article/K000152001
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.9
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 5.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact