What is CVE-2026-109481?

CVE-2026-109481 is a high-severity vulnerability in Microsoft Visual Studio 2026 Version 18.12, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.5/10. Published 2026-11-10.

How severe is CVE-2026-109481?

High severity. CVSS v3 base score is 7.5 out of 10.

CSRF in Microsoft Visual Studio 2026 Version 18.12

CVE-2026-109481

Cross-site request forgery (csrf) in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2026-11-10 · last modified 2026-11-10.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109481 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-109481?: CVE-2026-109481 is a high-severity vulnerability in Microsoft Visual Studio 2026 Version 18.12, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.5/10. Published 2026-11-10.
How severe is CVE-2026-109481?: High severity. CVSS v3 base score is 7.5 out of 10.