What is CVE-2011-2058?

CVE-2011-2058 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-2011-2058?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Cisco iOS

CVE-2011-2058

The cat6000-dot1x component in Cisco IOS 12.2 before 12.2(33)SXI7 does not properly handle an external loop between a pair of dot1x enabled ports, which allows remote attackers to cause a denial of service (traffic storm) via unspecified vectors that trigger many unicast EAPoL Protocol Data Units (PDUs), aka Bug ID CSCtq36336.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.018 (76.5th percentile) — read the EPSS interpretation.

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.

Affected products

Cisco Ios
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@cisco.com (x_refsource_CONFIRM, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2011-2058?: CVE-2011-2058 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-2011-2058?: High severity. CVSS v3 base score is 7.5 out of 10.