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CVE-2012-3543

24
FAUCET Score

CVE-2012-3543 describes a denial-of-service (DoS) vulnerability in Mono 2.10.x, specifically affecting its ASP.NET Web Form implementation due to a hash collision. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated attacker to remotely impact system availability with low attack complexity. Despite its potential for a complete denial of service, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.10, <= 2.10.12CPE matchmatch criteria
cpe:2.3:a:mono-project:mono:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.58%
Probability of exploitation in next 30 days
EPSS Percentile
83.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0258 is in the 71st 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 (1)

redhatpatch availablevia nvd_reference
View patch

References

access.redhat.com / security/cve/cve-2012-3543
Broken Link
bugs.gentoo.org / show_bug.cgi
Issue TrackingThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
bugzilla.suse.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
security-tracker.debian.org / tracker/CVE-2012-3543
Third Party Advisory
openwall.com / lists/oss-security/2012/08/28/14
ExploitMailing ListPatchThird Party Advisory
securityfocus.com / bid/55251
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2547-1
Third Party Advisory