What’s Vulnerable › Vulnerabilities

CVE-2012-3079

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-09-16 · updated 2026-06-16
• Weakness: CWE-399

Description

Cisco IOS 12.2 allows remote attackers to cause a denial of service (CPU consumption) by establishing many IPv6 neighbors, aka Bug ID CSCtn78957.

Affected products

• Cisco IOS: 12.2

References

• http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/release/notes/caveats_SXI_rebuilds.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/78921
• http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/release/notes/caveats_SXI_rebuilds.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/78921

Get alerted when CVE-2012-3079 or the next vulnerability affects your stack