CVE-2010-4254

Mono, when Moonlight before 2.3.0.1 or 2.99.x before 2.99.0.10 is used, does not properly...

7.5 HighPublic exploit

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.

Exploit likelihood

13.6%Down 31.4 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2010-4254
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2010-4254
Updated: 2026-11-02

EUVDEUVD-2010-4227 No score

Record: EUVD-2010-4227
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2fxv-5465-p76g No score

Mono, when Moonlight before 2.3.0.1 or 2.99.x before 2.99.0.10 is used, does not properly...

Record: GHSA-2fxv-5465-p76g
Weakness: CWE-20
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Mono/Moonlight Generic Type Argument - Privilege Escalation	2011-01-11

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-4254 is a high vulnerability (CVSS 7.5) in Mono, published December 3, 2010. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 13.6%, the 96th percentile. No source names a fixed version.

References

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