CVE-2026-62871
.NET Elevation of Privilege Vulnerability
At a glance
- Severity
- HIGH 7.8
- EPSS
- EPSS 0.47 % · percentile 40 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
Scores
| Version | Score | Vector | Scored by |
|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · secure@microsoft.com (Secondary) |
Weaknesses (CWE)
Advisories
- GHSA-vg44-h755-9hw7 — Microsoft Security Advisory CVE-2026-62871 – .NET Elevation of Privilege Vulnerability
European references
CERT-FR advisories
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 8.0.0 < 8.0.30cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 9.0.0 < 9.0.19cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 10.0.0 < 10.0.11cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* ≥ 17.14.0 < 17.14.38cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* ≥ 18.8.0 < 18.8.3
Affected products
References
Sources
