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CVE-2012-4777
The code-optimization feature in the reflection implementation in Microsoft .NET Framework 4 and 4.5 does not properly enforce object…
High9.3EPSS 24.8%
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
The code-optimization feature in the reflection implementation in Microsoft .NET Framework 4 and 4.5 does not properly enforce object permissions, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP) or (2) a crafted .NET Framework application, aka "WPF Reflection Optimization Vulnerability."
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 24.8% · top 2.1% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Weakness
Affected products
n/a
- affected n/a
References (7)
- TA12-318A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- MS12-074 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- oval:org.mitre.oval:def:15960 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 87267 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 56464 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 51236 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1027753 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .