What is CVE-2011-4661?

CVE-2011-4661 is a high-severity vulnerability in Cisco Ios, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2020-02-12.

How severe is CVE-2011-4661?

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

Vulnerability in Cisco Ios

CVE-2011-4661

A memory leak vulnerability exists in Cisco IOS before 15.2(1)T due to a memory leak in the HTTP PROXY Server process (aka CSCtu52820), when configured with Cisco ISR Web Security with Cisco ScanSafe and User Authenticaiton NTLM configured.

EPSS: 0.010 (59.7th 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 — versions before 15.2(1)T

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

psirt@cisco.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2011-4661?: CVE-2011-4661 is a high-severity vulnerability in Cisco Ios, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2020-02-12.
How severe is CVE-2011-4661?: High severity. CVSS v3 base score is 7.5 out of 10.