CVE-2010-2832: Cisco IOS

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

Unspecified vulnerability in the NAT for H.323 implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1 allows remote attackers to cause a denial of service (device reload) via transit traffic, aka Bug ID CSCtf91428.

Affected products

• Cisco IOS: version 12.1 only; version 12.1t only; version 12.1xi only; version 12.1xj only; version 12.1xl only; version 12.1xm only; …
• Cisco IOS XE: version 2.5.0 only; version 2.5.1 only; version 2.6.0 only; version 2.6.1 only

Published 2010-09-23. Last modified 2026-06-16.