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7.5 High

CVE-2025-20165 A vulnerability in the SIP processing subsystem of Cisco BroadWorks could allow an unauthenticated, remote attacker to…

Description

A vulnerability in the SIP processing subsystem of Cisco BroadWorks could allow an unauthenticated, remote attacker to halt the processing of incoming SIP requests, resulting in a denial of service (DoS) condition. This vulnerability is due to improper memory handling for certain SIP requests. An attacker could exploit this vulnerability by sending a high number of SIP requests to an affected system. A successful exploit could allow the attacker to exhaust the memory that was allocated to the Cisco BroadWorks Network Servers that handle SIP traffic. If no memory is available, the Network Servers can no longer process incoming requests, resulting in a DoS condition that requires manual intervention to recover.

Affected products and versions

Product Affected versions Fixed in
Cisco BroadWorks 23.0 No fix stated
Cisco BroadWorks 22.0 No fix stated
Cisco BroadWorks 21.0 No fix stated
Cisco BroadWorks 21.sp1 No fix stated

References

Timeline

  1. Published
  2. Last modified

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