The serialization functionality in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5 SP1, 3.5.1, 4, and 4.5 does not properly check the permissions of delegate objects, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (XBAP) or (2) a crafted .NET Framework application that leverages a partial-trust relationship, aka "Delegate Serialization Vulnerability."
Published Jul 10, 2013
9.3
HIGHCVSS 2.0
EPSS 20.60%
Description
The serialization functionality in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5 SP1, 3.5.1, 4, and 4.5 does not properly check the permissions of delegate objects, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (XBAP) or (2) a crafted .NET Framework application that leverages a partial-trust relationship, aka "Delegate Serialization Vulnerability."
Affected products
No data.
- 2.0
- 3.5
- 3.5
- 3.5.1
- 4.0
- 4.5
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:C/I:C/A:C
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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 20.60% (0.20600) | 97.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 20.60% (0.20600) | 97.19th | v5 (v2026.06.15) |
| Apr 25, 2025 | 8.64% (0.08641) | 91.93th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.36% (0.06360) | 90.05th | v4 (v2025.03.14) |
| Mar 29, 2025 | 19.85% (0.19853) | 92.58th | v4 (v2025.03.14) |
| Mar 19, 2025 | 6.36% (0.06360) | 89.80th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.78% (0.07775) | 91.35th | v4 (v2025.03.14) |
| Dec 17, 2024 | 75.40% (0.75404) | 98.37th | v3 (v2023.03.01) |
| Aug 3, 2024 | 53.38% (0.53381) | 97.63th | v3 (v2023.03.01) |
| May 30, 2024 | 47.97% (0.47974) | 97.47th | v3 (v2023.03.01) |
| Mar 27, 2024 | 51.43% (0.51427) | 97.50th | v3 (v2023.03.01) |
| Jan 25, 2024 | 48.46% (0.48460) | 97.20th | v3 (v2023.03.01) |
| Dec 2, 2023 | 40.65% (0.40648) | 96.91th | v3 (v2023.03.01) |
| Oct 13, 2023 | 56.76% (0.56758) | 97.30th | v3 (v2023.03.01) |
| Aug 26, 2023 | 56.06% (0.56062) | 97.22th | v3 (v2023.03.01) |
| Jul 8, 2023 | 49.55% (0.49553) | 97.02th | v3 (v2023.03.01) |
| May 22, 2023 | 36.26% (0.36257) | 96.56th | v3 (v2023.03.01) |
| Apr 5, 2023 | 38.85% (0.38854) | 96.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 41.73% (0.41733) | 96.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 48.41% (0.48414) | 98.63th | v2 (v2022.01.01) |
| Feb 4, 2022 | 48.41% (0.48414) | 98.12th | v2 (v2022.01.01) |
References (3)
- http://www.us-cert.gov/ncas/alerts/TA13-190A third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-052 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16867 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.us-cert.gov/ncas/alerts/TA13-190A | third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-052 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16867 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.