Vulnerability Monitor

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CVE-2008-3806

Cisco IOS 12.0 through 12.4 on Cisco 10000, uBR10012 and uBR7200 series devices handles external UDP packets that are sent to 127.0.0.0/8 addresses intended for IPC communication within the device, which allows remote attackers to cause a denial of service (device or linecard reload) via crafted UDP packets, a different vulnerability than CVE-2008-3805.

Security Impact Summary

CVE-2008-3806 is a security vulnerability that . Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2008, 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

2008-09-26T16:21:44.220

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 8.5 (HIGH)

CVSSv2 Vector

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

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

Exploitability Score

10.0

Impact Score

7.8

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	ios	12.0s	Yes
Operating System	cisco	ios	12.0sl	Yes
Operating System	cisco	ios	12.0st	Yes
Operating System	cisco	ios	12.2sb	Yes
Operating System	cisco	ios	12.2sca	Yes
Operating System	cisco	ios	12.2src	Yes
Operating System	cisco	ios	12.2zx	Yes
Operating System	cisco	ios	12.3bc	Yes
Operating System	cisco	ios	12.3t	Yes
Operating System	cisco	ios	12.3xi	Yes
Operating System	cisco	ios	12.4	Yes

References

http://secunia.com/advisories/31990 Third Party Advisory ([email protected])
http://tools.cisco.com/security/center/viewAlert.x?alertId=16646 Vendor Advisory ([email protected])
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014ae.shtml Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/45592 Third Party Advisory, VDB Entry ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7123 Third Party Advisory ([email protected])
http://secunia.com/advisories/31990 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://tools.cisco.com/security/center/viewAlert.x?alertId=16646 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014ae.shtml Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/45592 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7123 Third Party Advisory (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.