Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2011-4005

28
FAUCET Score

CVE-2011-4005 describes a critical Cross-Site Request Forgery (CSRF) vulnerability in the Services Ready Platform Configuration Utility web interface of several Cisco Small Business SRP520 and SRP540 series routers with specific firmware versions. This flaw allows unauthenticated remote attackers to hijack authenticated administrator sessions to execute arbitrary commands on affected devices. With a CVSS score of 9.3, this vulnerability poses a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential for significant impact necessitates patching.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:small_business_srp521w:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:small_business_srp526w:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:small_business_srp527w:*:*:*:*:*:*:*:*
<= 1.01.23CPE matchmatch criteria
cpe:2.3:a:cisco:small_business_srp520_series_firmware:*:*:*:*:*:*:*:*
1.00.06CPE matchmatch criteria
cpe:2.3:a:cisco:small_business_srp520_series_firmware:1.00.06:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 34th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

secunia.com / advisories/46664
exchange.xforce.ibmcloud.com / vulnerabilities/71103
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20111102-srp500
Vendor Advisory
securityfocus.com / bid/50495
securitytracker.com / id