CVE-2010-4254

Exp

Mono, when Moonlight before 2.3.0.1 or 2.99.x before 2.99.0.10 is used, does not properly validate arguments to generic methods, which allows remote attackers to bypass generic constraints, and possibly execute arbitrary code, via a crafted method call.

Published: 2010-12-06 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-4254 is rated High Exploit Risk (76.6/100): CVSS High severity, with high exploitation likelihood (EPSS 13.65%, 96th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). 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-2010-4254

EDB-ID Source Kind Published Link
15974 exploit_db edb 2011-01-11 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2010-4254

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 15.68% 13.65% -2.03%
2 2026-04-26 19.91% 15.68% -4.23%
3 2025-08-12 — 19.91% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-4254

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2010-4254

OS Trackers for CVE-2010-4254

vendor priority summary link
gentoo high CVE-2010-4254: 1 GLSA(s) (201206-13), 2 atom(s) (dev-lang/mono, dev-util/mono-debugger); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-4254
ubuntu negligible CVE-2010-4254 negligible priority: Ubuntu including 1 source packages (mono), 11 status rows across 11 suites (dapper, hardy, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, upstream): ignored 5, not-affected 5, released 1. https://ubuntu.com/security/CVE-2010-4254

Affected software / configurations for CVE-2010-4254

Vendor Product Version Raw CPE
mono mono — cpe:2.3:a:mono:mono:*:*:*:*:*:*:*:*
novell moonlight <= 2.3.0 cpe:2.3:a:novell:moonlight:*:*:*:*:*:*:*:*
novell moonlight 2.99.0 cpe:2.3:a:novell:moonlight:2.99.0:*:*:*:*:*:*:*
novell moonlight 2.99.1 cpe:2.3:a:novell:moonlight:2.99.1:*:*:*:*:*:*:*
novell moonlight 2.99.2 cpe:2.3:a:novell:moonlight:2.99.2:*:*:*:*:*:*:*
novell moonlight 2.99.7 cpe:2.3:a:novell:moonlight:2.99.7:*:*:*:*:*:*:*
novell moonlight 2.99.9 cpe:2.3:a:novell:moonlight:2.99.9:*:*:*:*:*:*:*

References for CVE-2010-4254

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.html
http://secunia.com/advisories/42373 Vendor Advisory
http://secunia.com/advisories/42877
http://www.exploit-db.com/exploits/15974
http://www.mono-project.com/Vulnerabilities#Moonlight_Generic_Constraints_Bypass_Vulnerability
http://www.securityfocus.com/bid/45051
http://www.vupen.com/english/advisories/2011/0076
https://bugzilla.novell.com/show_bug.cgi?id=654136
https://bugzilla.novell.com/show_bug.cgi?id=655847
https://github.com/mono/mono/commit/4905ef1130feb26c3150b28b97e4a96752e0d399 Patch
https://github.com/mono/mono/commit/65292a69c837b8a5f7a392d34db63de592153358 Patch
https://github.com/mono/mono/commit/cf1ec146f7c6acdc6697032b3aaafc68ffacdcac Patch
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