CVE-2025-20165
Cisco BroadWorks SIP Denial of Service Vulnerability
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.
Weakness: CWE-789
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco BroadWorks | Other Products | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco BroadWorks
Vendor advisory
Cisco BroadWorks SIP Denial of Service Vulnerability
Cisco’s rating: High (advisory CVSS 7.5) · Published Jan 22, 2025
Bug ID: CSCwm97019
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from