Not on CISA's list.
ASP.NET Core: remote code execution flaw
CVE-2026-102870 · Published 2026-10-13
How bad would it be?
8.8 out of 10
CVSS rates it high.
How likely is it to be used?
0.9%
Estimated chance of exploitation in the next 30 days, higher than 59% of all scored flaws (EPSS, 2026-10-29).
Is it already being used?
Not confirmed
It isn't on CISA's list. That doesn't prove nobody uses it: CISA only lists exploitation it has confirmed.
What the flaw is
Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
From the NVD.
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CWE-94 · NVD record: secure@microsoft.com. We have not selected a close learning match for this label.
CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
On SentryFeed
Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.