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CVE-2025-20165

Cisco BroadWorks SIP Denial of Service Vulnerability

Published: Jan 22, 2025Updated: Aug 6, 2025 Sources: CVE List NVD BDUCWE-789
7.5HIGH
NVD MITRE
EPSS Score
0.8%
Top 45.5%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-789

Affected Products

Cisco Systems Inc.
commercial·USaka Cisco, cisco systems
BroadWorks
Networking Infrastructure
Cisco BroadWorks
Networking Infrastructure
broadworks network server
Networking Infrastructure

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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References

https://nvd.nist.gov/vuln/detail/CVE-2025-20165
nvd.nist.gov
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bw-sip-dos-mSySbrmt
sec.cloudapps.cisco.com
https://blog.clamav.net/2025/01/clamav-142-and-108-security-patch.html
blog.clamav.net
and 1 more references View all →

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