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-2012-2213

22
FAUCET Score

CVE-2012-2213 describes a bypass vulnerability in Squid 3.1.9, allowing remote attackers to circumvent CONNECT method access controls by manipulating the Host HTTP header. This issue carries a CVSS score of 5.0, indicating a medium severity, with low attack complexity and potential for information disclosure. While the vulnerability's reproducibility is uncertain due to a lack of a definitive vulnerable configuration, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.9CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:3.1.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
12.31%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1231 is in the 95th percentile among its peer group of 23,705 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (2)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: squid
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: squid

Vendor Advisories (1)

redhatCVE-2012-2213Low

squid: URL filtering bypass

Apr 16, 2012

References

archives.neohapsis.com / archives/bugtraq/2012-04/0117.html
archives.neohapsis.com / archives/bugtraq/2012-04/0131.html
archives.neohapsis.com / archives/bugtraq/2012-04/0140.html
archives.neohapsis.com / archives/bugtraq/2012-04/0146.html
archives.neohapsis.com / archives/bugtraq/2012-04/0163.html
archives.neohapsis.com / archives/bugtraq/2012-04/0165.html