Vulnerability Description
The DHCPv6 server in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 and IOS XE 2.1.x through 2.6.x, 3.1.xS before 3.1.4S, 3.1.xSG and 3.2.xSG before 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG before 3.3.1SG allows remote attackers to cause a denial of service (device reload) via a malformed DHCPv6 packet, aka Bug ID CSCto57723.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | 2.1 |
| Cisco | Ios | 12.3 |
Related Weaknesses (CWE)
References
- http://osvdb.org/85810
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20Vendor Advisory
- http://www.securityfocus.com/bid/55700
- http://www.securitytracker.com/id?1027577
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78885
- http://osvdb.org/85810
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20Vendor Advisory
- http://www.securityfocus.com/bid/55700
- http://www.securitytracker.com/id?1027577
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78885
FAQ
What is CVE-2012-4623?
CVE-2012-4623 is a vulnerability with a CVSS score of 7.8 (HIGH). The DHCPv6 server in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 and IOS XE 2.1.x through 2.6.x, 3.1.xS before 3.1.4S, 3.1.xSG and 3.2.xSG before 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG be...
How severe is CVE-2012-4623?
CVE-2012-4623 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-4623?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Ios.