Cisco BroadWorks up to 21.sp1 ap351754 SIP Processing Subsystem memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco BroadWorks and classified as problematic. The impacted element is an unknown function of the component SIP Processing Subsystem. Executing a manipulation can lead to memory allocation. This vulnerability is registered as CVE-2025-20165. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Cisco BroadWorks and classified as critical. This vulnerability affects an unknown code of the component SIP Processing Subsystem. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability was named CVE-2025-20165 since 10/10/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (cisco): 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/10/2024 🔍
01/22/2025 +104 days 🔍
01/22/2025 +0 days 🔍
08/06/2025 +196 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-bw-sip-dos-mSySbrmt
Status: Confirmed

CVE: CVE-2025-20165 (🔍)
GCVE (CVE): GCVE-0-2025-20165
GCVE (VulDB): GCVE-100-293080

Entryinfo

Created: 01/22/2025 17:49
Updated: 08/06/2025 22:18
Changes: 01/22/2025 17:49 (64), 08/06/2025 22:18 (1)
Complete: 🔍
Cache ID: 216::103

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