Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.
Fix
Microsoft's update · Important
- Release Notes — Microsoft Visual Studio 2026 version 18.11 · build 18.11.3 · restart required
- Release Notes — Microsoft Visual Studio 2017 version 15.9 · build 15.9.84 · restart required
- Release Notes — Microsoft Visual Studio 2019 version 16.11 · build 16.11.62 · restart required
- Release Notes — Microsoft Visual Studio 2022 version 17.14 · build 17.14.44 · restart required
From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-31 · Exploitation Less Likely.
Patch, vendor advisory and mitigation references on NVD 1
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118147 vendor-advisory, patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.4 · microsoftNVD modified 2026-10-31 18:13
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 1
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118147 vendor-advisory, patch