CVE-2025-27558

Description

IEEE P802.11-REVme D1.1 through D7.0 allows FragAttacks against mesh networks. In mesh networks using Wi-Fi Protected Access (WPA, WPA2, or WPA3) or Wired Equivalent Privacy (WEP), an adversary can exploit this vulnerability to inject arbitrary frames towards devices that support receiving non-SSP A-MSDU frames. NOTE: this issue exists because of an incorrect fix for CVE-2020-24588. P802.11-REVme, as of early 2025, is a planned release of the 802.11 standard.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.02%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/vanhoefm/fragattacks-survey-public/blob/main/README.md

Frequently Asked Questions

What is the severity of CVE-2025-27558?
CVE-2025-27558 has been scored as a critical severity vulnerability.
How to fix CVE-2025-27558?
To fix CVE-2025-27558, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-27558 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27558 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.