How severe is CVE-2011-2666?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 5 out of 10.

What type of vulnerability is CVE-2011-2666?

This is classified as CWE-16, which is a common weakness in software security.

CVE-2011-2666 - MEDIUM Severity | CVSS 5

Vulnerability Description

The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the differences in the responses for different usernames, a different vulnerability than CVE-2011-2536.

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