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Vulnerability record · CVE-2010-4254 · published 6 December 2010

CVE-2010-4254: Mono improper input validation vulnerability

Mono · Mono

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.

7.5 CVSS 2.0 High EPSS 14% · top 3.6% CWE-20 · Improper input validation
7.5CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
26References
16 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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
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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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2010-4254), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.