CVE-2026-96957
highImproper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Vendor / product: Microsoft — .net
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
CVSS
8.8
8.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (secure@microsoft.com)
Timeline (UTC)
Published: 2026-10-13 19:22
Modified: 2026-10-22 22:20
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:00 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
microsoft / .net ≥10.0.0 <10.0.13, 11.0.0
microsoft / visual_studio_2022 ≥17.14.0 <17.14.42
microsoft / visual_studio_2026 ≥18.10.0 <18.10.4
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96957
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96957 secure@microsoft.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:00 UTC · record ↗