Patch tracker / KB5068332
KB5068332: ASP.NET Core 8.0 Security Update (October 2025)
KB5068332 is a Critical security update for ASP.NET Core 8.0, released 2025-10-14. It closes 3 CVEs with a maximum CVSS of 9.9. The most likely of them to be attacked is CVE-2025-55247, which FIRST.org rates at 66% probability of exploitation in the next 30 days.
Update summary
Fixes 3 CVEs. Most severe CVSS 9.9 (Critical). EPSS exploit probability up to 66%. Among the top 25% of tracked Microsoft updates by EPSS exploit probability.
A newer security update for .NET 8.0 installed on Linux has shipped since this one: KB5077862 (2026-02-10). For cumulative update families the newer package includes these fixes, so installing that one is usually the shorter path. Verify against your own update rings before you skip this package.
KB5068332 patches three CVEs in .NET 8.0 and 9.0 on Linux and ASP.NET Core 8.0, topped by a Critical flaw rated CVSS 9.9 with a 66 percent EPSS score. The Linux focus is notable here because many patch cycles skew toward Windows hosts, so containerized and server-side .NET workloads running on Linux are the exposed surface. The high EPSS on a 9.9 rated issue means exploitation probability is elevated even though none of these CVEs are in CISA KEV or tied to ransomware yet.
Do this: Inventory your Linux hosts and containers running .NET 8.0, .NET 9.0, or ASP.NET Core 8.0 and apply KB5068332 to those runtimes first.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5068332
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5068332
- Released
- 2025-10-14
- Last changed
- 2025-10-14
- Changes tracked
- 1
Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.
Check if KB5068332 is installed
Elevated PowerShell. No output means it is not installed.
CVEs fixed by this update
Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2025-55315 | Critical | 9.9 | 66% | No |
| CVE-2025-55247 | High | 7.3 | 66% | No |
| CVE-2025-55248 | Medium | 4.8 | 66% | No |
Scope and sources
- Affected products
- Also released in October 2025
KB5070879
1 CVE · Critical · exploitedKB5070881
1 CVE · Critical · exploitedKB5070882
1 CVE · Critical · exploitedKB5070883
1 CVE · Critical · exploitedKB5070884
1 CVE · Critical · exploitedKB5070886
1 CVE · Critical · exploitedKB5070887
1 CVE · Critical · exploitedKB5070892
1 CVE · Critical · exploitedThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.