CVE-2026-42899
HIGHCVSS 7.5/10EPSS 1.18%
Last modified
CVE-2026-42899 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.. EPSS estimates a 1.18% chance of exploitation in the next 30 days.
Description
Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .Net | >= 8.0.0, < 8.0.27 |
| Microsoft | .Net | >= 9.0.0, < 9.0.16 |
| Microsoft | .Net | >= 10.0.0, < 10.0.8 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-42899?
Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.
How severe is CVE-2026-42899?
CVE-2026-42899 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-42899?
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.
Are you affected by CVE-2026-42899?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST