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Vulnerability record · CVE-2026-26127 · published 10 March 2026

CVE-2026-26127: Microsoft .net out-of-bounds read vulnerability

Microsoft · .Net

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

7.5 CVSS 3.1 High EPSS 1.2% · top 33.8% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26127 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-26127), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.