VDB
CVE-2026-21257
CVE-2026-21257
PUBLISHED
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EPSS 0.90% · 58.1th percentile
Risk Scores
EPSS Score
0.90%
58.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft .NET Framework 9.0 | |
| Microsoft | Microsoft .NET Framework 8.0 | |
| Microsoft | Microsoft .NET Framework 10.0 | |
| Ubuntu | Ubuntu Linux | |
| Microsoft | Microsoft Visual Studio 2022 version 18.3 | |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | |
| Microsoft | Microsoft Visual Studio Code |
Timeline
- Feb 10, 2026 CVE Published
- Feb 10, 2026 PoC Published
- Feb 10, 2026 PoC Published
- Feb 10, 2026 PoC Published
- Feb 11, 2026 EPSS Score
- Feb 11, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 13, 2026 PoC Published
- Feb 13, 2026 PoC Published
- Feb 13, 2026 PoC Published
- Feb 14, 2026 EPSS Score
- Feb 16, 2026 EPSS Score
References
- https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0367.json advisory
- https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0367 advisory
- https://msrc.microsoft.com/update-guide/ advisory
- https://ubuntu.com/security/notices/USN-8025-1 advisory
- https://ubuntu.com/security/notices/USN-8025-2 advisory