CVE-2012-5036: Cisco IOS

Medium severity, CVSS 6.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Cisco IOS before 12.2(50)SY1 allows remote authenticated users to cause a denial of service (memory consumption) via a sequence of VTY management sessions (aka exec sessions), aka Bug ID CSCtn43662.

Affected products

• Cisco IOS: version 12.2(33)sxi4 only; version 12.2(33)sxi5 only; version 12.2(33)sxi6 only; version 12.2(33)sxi7 only; version 12.2(33)sxj only; version 12.2(50)sy only

Published 2014-04-23. Last modified 2026-06-16.