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CVE-2012-0804

35
FAUCET Score

CVE-2012-0804 describes a critical heap-based buffer overflow in the proxy_connect function within CVS versions 1.11 and 1.12. This flaw allows a malicious HTTP proxy server to trigger a denial of service or potentially execute arbitrary code on a client system through a specially crafted HTTP response. With a CVSS score of 10.0, this vulnerability is highly severe, requiring no authentication and having low attack complexity, making it easily exploitable over the network. Despite its critical nature, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.11CPE matchmatch criteria
cpe:2.3:a:cvs:cvs:1.11:*:*:*:*:*:*:*
1.12CPE matchmatch criteria
cpe:2.3:a:cvs:cvs:1.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
8.40%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0840 is in the 91st percentile among its peer group of 51,466 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: cvs-0:1.11.22-11.el5_8.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: cvs-0:1.11.23-11.el6_2.1
View patch

Vendor Advisories (1)

redhatCVE-2012-0804Moderate

cvs: client proxy_connect heap-based buffer overflow

Feb 6, 2012

References

lists.opensuse.org / opensuse-updates/2012-02/msg00064.html
rhn.redhat.com / errata/RHSA-2012-0321.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/47869
Vendor Advisory
secunia.com / advisories/48063
Vendor Advisory
secunia.com / advisories/48142
Vendor Advisory
secunia.com / advisories/48150
exchange.xforce.ibmcloud.com / vulnerabilities/73097
security.gentoo.org / glsa/201701-44
ubuntu.com / usn/usn-1371-1
debian.org / security/2012/dsa-2407
mandriva.com / security/advisories
osvdb.org / 78987
securityfocus.com / bid/51943
securitytracker.com / id