Cisco’s Wireless Woes: Fixing a Severe Security Snafu with Style!
Cisco has fixed a maximum severity flaw in IOS XE Software for Wireless LAN Controllers. The vulnerability, CVE-2025-20188, involves a hard-coded JSON Web Token that lets attackers impersonate users. If you’re not keen on surprise guests in your network, update now or face a party crasher with root privileges!
Hot Take:
Who knew a simple token could be the golden ticket for hackers? Cisco’s latest blunder with a hard-coded JSON Web Token (JWT) is like leaving the keys to your kingdom under the welcome mat. Good news for attackers, bad news for the rest of us! Time to patch up those digital fortresses, folks.
Key Points:
- Cisco’s IOS XE Software flaw allows remote attackers to take over devices using a hard-coded JWT.
- The vulnerability, CVE-2025-20188, has a perfect 10.0 CVSS score, indicating maximum severity.
- Only exploitable if ‘Out-of-Band AP Image Download’ is enabled, which is not by default.
- Affected devices include various models of Catalyst Wireless Controllers and Embedded Wireless Controllers on Catalyst APs.
- Cisco has released security updates, but no current mitigations or workarounds exist.
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