StringBuilder in Microsoft Silverlight 5 before 5.1.50709.0 does not properly allocate memory for string-insert and string-append operations, which allows remote attackers to execute arbitrary code via a crafted web site, aka "Microsoft Silverlight Memory Corruption Vulnerability."
Published Sep 14, 2016
8.8
HIGHCVSS 3.0
EPSS 17.79%
Description
StringBuilder in Microsoft Silverlight 5 before 5.1.50709.0 does not properly allocate memory for string-insert and string-append operations, which allows remote attackers to execute arbitrary code via a crafted web site, aka "Microsoft Silverlight Memory Corruption Vulnerability."
Affected products
No data.
- 5.0
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 17.79% (0.17793) | 97.08th | v5 (v2026.06.15) |
| Sep 22, 2026 | 17.79% (0.17793) | 97.03th | v5 (v2026.06.15) |
| Sep 21, 2026 | 16.32% (0.16316) | 96.86th | v5 (v2026.06.15) |
| Sep 6, 2026 | 17.79% (0.17793) | 96.96th | v5 (v2026.06.15) |
| Sep 5, 2026 | 16.32% (0.16316) | 96.80th | v5 (v2026.06.15) |
| Aug 30, 2026 | 17.79% (0.17793) | 96.95th | v5 (v2026.06.15) |
| Aug 28, 2026 | 16.32% (0.16316) | 96.78th | v5 (v2026.06.15) |
| Aug 24, 2026 | 17.79% (0.17793) | 96.93th | v5 (v2026.06.15) |
| Aug 23, 2026 | 16.32% (0.16316) | 96.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 17.79% (0.17793) | 96.78th | v5 (v2026.06.15) |
| Apr 2, 2026 | 19.68% (0.19682) | 95.40th | v4 (v2025.03.14) |
| Sep 17, 2025 | 21.34% (0.21341) | 95.49th | v4 (v2025.03.14) |
| Mar 30, 2025 | 24.25% (0.24246) | 95.63th | v4 (v2025.03.14) |
| Mar 29, 2025 | 48.97% (0.48972) | 96.74th | v4 (v2025.03.14) |
| Mar 19, 2025 | 24.25% (0.24246) | 95.42th | v4 (v2025.03.14) |
| Mar 17, 2025 | 25.28% (0.25279) | 95.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 53.78% (0.53780) | 97.74th | v3 (v2023.03.01) |
| Feb 25, 2024 | 53.27% (0.53275) | 97.51th | v3 (v2023.03.01) |
| Dec 16, 2023 | 58.25% (0.58248) | 97.41th | v3 (v2023.03.01) |
| Aug 18, 2023 | 59.15% (0.59152) | 97.29th | v3 (v2023.03.01) |
| May 28, 2023 | 57.67% (0.57669) | 97.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 54.76% (0.54759) | 97.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 32.83% (0.32828) | 97.63th | v2 (v2022.01.01) |
| Feb 4, 2022 | 32.83% (0.32828) | 96.55th | v2 (v2022.01.01) |
References (3)
- http://www.securityfocus.com/bid/92837 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036795 vdb-entryx_refsource_SECTRACK
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-109 vendor-advisoryx_refsource_MS
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/92837 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1036795 | vdb-entryx_refsource_SECTRACK | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-109 | vendor-advisoryx_refsource_MS |
Change history (0)
No recorded changes yet.