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.
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.
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)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| 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:*:*:*:*:*:*:* |