Vulnerability Monitor

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CVE-2009-2870

Unspecified vulnerability in Cisco IOS 12.2 through 12.4, when the Cisco Unified Border Element feature is enabled, allows remote attackers to cause a denial of service (device reload) via crafted SIP messages, aka Bug ID CSCsx25880.

Security Impact Summary

CVE-2009-2870 is a security vulnerability that . Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-09-28T19:30:01.483

Last Modified

2026-06-16T23:10:23.840

Status

Modified

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	ios	12.3yk	Yes
Operating System	cisco	ios	12.3ys	Yes
Operating System	cisco	ios	12.3yt	Yes
Operating System	cisco	ios	12.4gc	Yes
Operating System	cisco	ios	12.4mr	Yes
Operating System	cisco	ios	12.4t	Yes
Operating System	cisco	ios	12.4xa	Yes
Operating System	cisco	ios	12.4xc	Yes
Operating System	cisco	ios	12.4xd	Yes
Operating System	cisco	ios	12.4xe	Yes
Operating System	cisco	ios	12.4xl	Yes
Operating System	cisco	ios	12.4xm	Yes
Operating System	cisco	ios	12.4xp	Yes
Operating System	cisco	ios	12.4xt	Yes
Operating System	cisco	ios	12.4xv	Yes
Operating System	cisco	ios	12.4xw	Yes
Operating System	cisco	ios	12.4xy	Yes
Operating System	cisco	ios	12.4xz	Yes
Operating System	cisco	ios	12.4ya	Yes

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=18891 Vendor Advisory ([email protected])
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af811b.shtml Vendor Advisory ([email protected])
http://www.securitytracker.com/id?1022930 ([email protected])
http://www.vupen.com/english/advisories/2009/2759 ([email protected])
http://tools.cisco.com/security/center/viewAlert.x?alertId=18891 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af811b.shtml Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1022930 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/2759 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.