CVE-2025-54500

medium

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.

References

Advisories
References

https://my.f5.com/manage/s/article/K000152001

https://thehackernews.com/2025/08/new-http2-madeyoureset-vulnerability.html

https://kb.cert.org/vuls/id/767506

Details

Source: Mitre, NVD

Published: 2025-08-13

Updated: 2025-08-13

Named Vulnerability: MadeYouReset

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.0007