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CVE-2011-0989

21
FAUCET Score

CVE-2011-0989 describes a vulnerability in the RuntimeHelpers.InitializeArray method within Mono, specifically impacting Moonlight 2.x and 3.x. This flaw allows remote attackers to manipulate internal read-only data structures by not properly restricting data types when processing crafted media files. The vulnerability carries a CVSS score of 5.8, indicating a medium severity, with a potential for denial of service (plugin crash) or corruption of the security manager's internal state. There is no evidence of active exploitation, nor are there publicly available exploits in Metasploit, Nuclei, or ExploitDB, and it has garnered minimal community discussion or media coverage.

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
2.69%
Probability of exploitation in next 30 days
EPSS Percentile
84.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0269 is in the 76th 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/66624
github.com / mono/mono/commit/035c8587c0d8d307e45f1b7171a0d337bb451f1e
Patch
mono-project.com / Vulnerabilities
securityfocus.com / bid/47208
vupen.com / english/advisories/2011/0904
Vendor Advisory