The RuntimeHelpers.InitializeArray method in metadata/icall.c in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, does not properly restrict data types, which allows remote attackers to modify internal read-only data structures, and cause a denial of service (plugin crash) or corrupt the internal state of the security manager, via a crafted media file, as demonstrated by modifying a C# struct
Published Apr 13, 2011
5.8
MEDIUMCVSS 2.0
EPSS 2.69%
Description
The RuntimeHelpers.InitializeArray method in metadata/icall.c in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, does not properly restrict data types, which allows remote attackers to modify internal read-only data structures, and cause a denial of service (plugin crash) or corrupt the internal state of the security manager, via a crafted media file, as demonstrated by modifying a C# struct.
Affected products
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.69% (0.02692) | 85.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.69% (0.02692) | 83.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.14% (0.01136) | 76.90th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.98% (0.03978) | 92.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.98% (0.03978) | 90.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01955) | 78.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.96% (0.01955) | 76.59th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.96% (0.01955) | 55.71th | v2 (v2022.01.01) |
References (10)
- http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/04/06/14 mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/44002 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44076 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.mono-project.com/Vulnerabilities x_refsource_CONFIRM
- http://www.securityfocus.com/bid/47208 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2011/0904 vdb-entryx_refsource_VUPENVendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=667077 x_refsource_CONFIRMPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66624 vdb-entryx_refsource_XF
- https://github.com/mono/mono/commit/035c8587c0d8d307e45f1b7171a0d337bb451f1e x_refsource_CONFIRMPatch
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2011-04/msg00024.html | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/04/06/14 | mailing-listx_refsource_MLISTPatch | |
| http://secunia.com/advisories/44002 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/44076 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.mono-project.com/Vulnerabilities | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/47208 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2011/0904 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://bugzilla.novell.com/show_bug.cgi?id=667077 | x_refsource_CONFIRMPatch | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/66624 | vdb-entryx_refsource_XF | |
| https://github.com/mono/mono/commit/035c8587c0d8d307e45f1b7171a0d337bb451f1e | x_refsource_CONFIRMPatch |
Change history (0)
No recorded changes yet.