Improper input validation in Cisco iOS
CVE-2011-2057
The cat6000-dot1x component in Cisco IOS 12.2 before 12.2(33)SXI7 does not properly handle (1) a loop between a dot1x enabled port and an open-authentication dot1x enabled port and (2) a loop between a dot1x enabled port and a non-dot1x port, which allows remote attackers to cause a denial of service (traffic storm) via unspecified vectors that trigger many Spanning Tree Protocol (STP) Bridge Protocol Data Unit (BPDU) frames, aka Bug ID CSCtq36327.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/release/notes/cav… (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2011-2057?
- CVE-2011-2057 is a high-severity vulnerability in Cisco iOS, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2011-10-22.
- How severe is CVE-2011-2057?
- High severity. CVSS v3 base score is 7.5 out of 10.