SB2025081505 - Spoofing attack in IEEE 802.11 implementation



SB2025081505 - Spoofing attack in IEEE 802.11 implementation

Published: August 15, 2025

Security Bulletin ID SB2025081505
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Insufficient verification of data authenticity (CVE-ID: CVE-2025-27558)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows an attacker to perform spoofing attack.

The vulnerability exists due to insufficient verification of data authenticity in mesh networks using Wi-Fi Protected Access (WPA, WPA2, or WPA3) or Wired Equivalent Privacy (WEP). A remote attacker on the local network can inject arbitrary frames towards devices that support receiving non-SSP A-MSDU frames and perform spoofing attack.


Remediation

Install update from vendor's website.