CVE-2011-4005

Cross-site request forgery (CSRF) vulnerability in the Services Ready Platform Configuration Utility web interface on the Cisco Small Business SRP521W, SRP526W, and SRP527W with firmware before 1.1.24 and the Small Business SRP541W, SRP546W, and SRP547W with firmware before 1.2.1 allows remote attackers to hijack the authentication of administrators for requests that execute arbitrary commands, aka Bug ID CSCtr45124.

Published: 2011-11-03 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2011-4005 is rated Moderate Risk (63.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.80%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-4005

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-18 1.88% 1.80% -0.07%
2 2026-06-15 0.22% 1.88% +1.66%
3 2025-03-30 0.22%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4005

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2011-4005

Affected software / configurations for CVE-2011-4005

Vendor Product Version Raw CPE
cisco small_business_srp521w cpe:2.3:h:cisco:small_business_srp521w:*:*:*:*:*:*:*:*
cisco small_business_srp526w cpe:2.3:h:cisco:small_business_srp526w:*:*:*:*:*:*:*:*
cisco small_business_srp527w cpe:2.3:h:cisco:small_business_srp527w:*:*:*:*:*:*:*:*
cisco small_business_srp520_series_firmware <= 1.01.23 cpe:2.3:a:cisco:small_business_srp520_series_firmware:*:*:*:*:*:*:*:*
cisco small_business_srp520_series_firmware 1.00.06 cpe:2.3:a:cisco:small_business_srp520_series_firmware:1.00.06:*:*:*:*:*:*:*
cisco small_business_srp520_series_firmware 1.01.01 cpe:2.3:a:cisco:small_business_srp520_series_firmware:1.01.01:*:*:*:*:*:*:*
cisco small_business_srp520_series_firmware 1.01.19_mr3 cpe:2.3:a:cisco:small_business_srp520_series_firmware:1.01.19_mr3:*:*:*:*:*:*:*
cisco small_business_srp541w cpe:2.3:h:cisco:small_business_srp541w:*:*:*:*:*:*:*:*
cisco small_business_srp546w cpe:2.3:h:cisco:small_business_srp546w:*:*:*:*:*:*:*:*
cisco small_business_srp547w cpe:2.3:h:cisco:small_business_srp547w:*:*:*:*:*:*:*:*
cisco small_business_srp540_series_firmware <= 1.02.01_mr2 cpe:2.3:a:cisco:small_business_srp540_series_firmware:*:*:*:*:*:*:*:*
cisco small_business_srp540_series_firmware 1.02.00 cpe:2.3:a:cisco:small_business_srp540_series_firmware:1.02.00:*:*:*:*:*:*:*

References for CVE-2011-4005

cvelogic Threat Intelligence