Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) do not properly determine the interfaces for which TELNET connections should be permitted, which allows remote authenticated users to bypass intended access restrictions via vectors involving the "lowest security level interface," aka Bug ID CSCsv40504.
Severity
High 9.0
Published
7 Jan 2011
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.8% in the next 30 daysHigher than 86% of CVEs. EPSS by FIRST, 12 Nov 2026