CVE-2025-201657.5HighCWE-789

CVE-2025-20165: Cisco BroadWorks SIP Denial of Service Vulnerability

Cisco · Cisco BroadWorks

Vendor fix available · Affected: Cisco BroadWorks · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.8%probability of exploitation in the next 30 days

58th percentile

050100

Higher than 58% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Cisco · Cisco BroadWorks22.0; 23.0; RI.2021.02; 23.0 ap380391; 23.0 ap380396; RI.2021.08 and 2693 more

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Memory Allocation with Excessive Size Value · Denial of Service
Vendor: Cisco
Published: January 2025
Band: Unlikely (under 1%), January 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-20165 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.