VDB-4115 · CVE-2010-0579 · BID 38935

Cisco IOS 12.x/R12.x SIP memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in Cisco IOS 12.x/R12.x (Router Operating System). This issue affects some unknown processing of the component SIP Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The weakness was published 03/25/2010 with Cisco (Website). It is possible to read the advisory at cisco.com. The identification of this vulnerability is CVE-2010-0579 since 02/10/2010. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 49054 (Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20100324-sip)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43176 (Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20100324-sip)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (49054). Similar entries are available at 52368 and 52367.








  • end of life (old version)

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 49054
Nessus Name: Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20100324-sip)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: cisco.com


02/10/2010 🔍
03/24/2010 +42 days 🔍
03/24/2010 +0 days 🔍
03/24/2010 +0 days 🔍
03/24/2010 +0 days 🔍
03/25/2010 +1 days 🔍
03/25/2010 +0 days 🔍
03/25/2010 +0 days 🔍
03/25/2010 +0 days 🔍
04/19/2010 +24 days 🔍
09/01/2010 +135 days 🔍
03/18/2021 +3851 days 🔍


Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-0579 (🔍)
SecurityTracker: 1023744 - Cisco IOS SIP Processing Flaws Let Remote Users Deny Service and Potentially Execute Arbitrary Code
Vulnerability Center: 25150 - [cisco-sa-20100324-sip] Cisco IOS SIP Message Remote Code Execution Vulnerability, Critical
SecurityFocus: 38935 - Cisco IOS SIP Message (CVE-2010-0579) Remote Code Execution Vulnerability
Secunia: 39068 - Cisco IOS SIP Implementation Multiple Vulnerabilities, Highly Critical
OSVDB: 63183 - Cisco IOS Malformed SIP Message Handling Unspecified Remote Code Execution (CSCsz48680)

See also: 🔍


Created: 04/19/2010 02:00 AM
Updated: 03/18/2021 06:33 AM
Changes: 04/19/2010 02:00 AM (80), 02/22/2017 10:44 AM (10), 03/18/2021 06:33 AM (3)
Complete: 🔍


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