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CVE-2011-4521

21
FAUCET Score

CVE-2011-4521 describes a SQL injection vulnerability in Advantech/BroadWin WebAccess versions prior to 7.0. This flaw allows unauthenticated remote attackers to execute arbitrary SQL commands by submitting specially crafted string input. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its low attack complexity, requiring no authentication, and potential for complete compromise of confidentiality, integrity, and availability. There is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.0CPE matchmatch criteria
cpe:2.3:a:advantech:advantech_webaccess:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:advantech:advantech_webaccess:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.23%
Probability of exploitation in next 30 days
EPSS Percentile
65.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0123 is in the 45th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

securityfocus.com / bid/52051
us-cert.gov / control_systems/pdf/ICSA-12-047-01.pdf
US Government Resource