CVE-2026-40372
CRITICALCVSS 9.1/10EPSS 11.21%
Last modified
CVE-2026-40372 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.. EPSS estimates a 11.21% chance of exploitation in the next 30 days.
Description
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Asp.Net Core | >= 10.0.0, < 10.0.7 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-40372?
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
How severe is CVE-2026-40372?
CVE-2026-40372 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 11.21% probability of exploitation in the next 30 days.
How do I fix CVE-2026-40372?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
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Are you affected by CVE-2026-40372?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST