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Vulnerability record · CVE-2026-70579 · published 8 September 2026

CVE-2026-70579: Microsoft windows 10 21h2 out-of-bounds read vulnerability

Microsoft · Windows 10 21h2

Out-of-bounds read in Windows Mobile Broadband allows an unauthorized attacker to disclose information over a network.

7.5 CVSS 3.1 High EPSS 1.0% · top 37.8% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
1References
24 Sep 2026Last modified by NVD

Description

Out-of-bounds read in Windows Mobile Broadband allows an unauthorized attacker to disclose information over a network.

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

Affected products

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

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70579 Vendor AdvisoryPatch

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Source: NIST National Vulnerability Database (record CVE-2026-70579), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.