CVE-2012-3543

Exp

mono 2.10.x ASP.NET Web Form Hash collision DoS

Published: 2019-11-21 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3543 is rated High Exploit Risk (75.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.58%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.44% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2012-3543

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2012-3543

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.15% 2.58% +1.44%
2 2026-05-13 1.00% 1.15% +0.14%
3 2025-12-28 — 1.00% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3543

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2012-3543

OS Trackers for CVE-2012-3543

vendor priority summary link
debian not yet assigned CVE-2012-3543 not yet assigned priority: Debian including 1 source packages (mono), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-3543
gentoo normal CVE-2012-3543: 1 GLSA(s) (201405-16), 1 atom(s) (dev-lang/mono); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-3543
ubuntu low CVE-2012-3543 low priority: Ubuntu including 1 source packages (mono), 11 status rows across 11 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic): ignored 7, not-affected 2, released 2. https://ubuntu.com/security/CVE-2012-3543

Affected software / configurations for CVE-2012-3543

Vendor Product Version Raw CPE
mono-project mono >= 2.10, <= 2.10.12 cpe:2.3:a:mono-project:mono:*:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References for CVE-2012-3543

URL Tags
http://www.openwall.com/lists/oss-security/2012/08/28/14 Exploit Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/55251 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2547-1 Third Party Advisory
https://access.redhat.com/security/cve/cve-2012-3543 Broken Link
https://bugs.gentoo.org/show_bug.cgi?id=CVE-2012-3543 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-3543 Issue Tracking Patch Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-3543 Issue Tracking Patch Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2012-3543 Third Party Advisory
cvelogic Threat Intelligence