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CVE-2011-0990

19
FAUCET Score

CVE-2011-0990 describes a race condition in the FastCopy optimization within Mono's Array.Copy method, specifically affecting Moonlight 2.x and 3.x, as well as various Mono distributions. This vulnerability, with a CVSS score of 5.8, can be triggered remotely via a crafted media file, leading to a buffer overflow that may cause a denial of service (plugin crash) or corrupt the security manager's internal state. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:mono:mono:*:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:novell:moonlight:2.0:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:novell:moonlight:2.3.0:*:*:*:*:*:*:*
2.4CPE matchmatch criteria
cpe:2.3:a:novell:moonlight:2.4:*:*:*:*:*:*:*
2.31CPE matchmatch criteria
cpe:2.3:a:novell:moonlight:2.31:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.16%
Probability of exploitation in next 30 days
EPSS Percentile
80.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0216 is in the 68th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.opensuse.org / opensuse-updates/2011-04/msg00024.html
openwall.com / lists/oss-security/2011/04/06/14
Patch
bugzilla.novell.com / show_bug.cgi
Patch
secunia.com / advisories/44002
Vendor Advisory
secunia.com / advisories/44076
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/66625
github.com / mono/mono/commit/2f00e4bbb2137130845afb1b2a1e678552fc8e5c
Patch
mono-project.com / Vulnerabilities
securityfocus.com / bid/47208
vupen.com / english/advisories/2011/0904
Vendor Advisory