Cisco Crosswork Network Controller DoS Vulnerability Patched (advisories.ncsc.nl)

• Cisco Crosswork Network Controller vulnerable to DoS attacks.
• Unauthenticated attackers can flood the system with connection requests.
• Manual restart and patch required to resolve.

"Cisco has fixed a vulnerability in the Cisco Crosswork Network Controller. The flaw allows unauthenticated remote attackers to cause a denial-of-service (DoS) by overwhelming the system with a high volume of connection requests. This makes services unresponsive and requires a manual restart of the affected device to restore functionality. The advisory was published by the Dutch NCSC under ID NCSC-2026-0149."