CVE-2026-62886 — HIGH (7.8)

Q: What is CVE-2026-62886?

CVE-2026-62886 is a vulnerability with a CVSS score of 7.8 (HIGH). Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

Q: How severe is CVE-2026-62886?

CVE-2026-62886 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-62886?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Visual Studio 2022, Microsoft Visual Studio 2026, Microsoft .Net, Microsoft Windows.

Vulnerability Description

Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Visual Studio 2022	>= 17.14.0, < 17.14.38
Microsoft	Visual Studio 2026	>= 18.8.0, < 18.8.3
Microsoft	.Net	>= 8.0.0, < 8.0.30
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-122 CWE-190

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62886PatchVendor Advisory

FAQ

What is CVE-2026-62886?

CVE-2026-62886 is a vulnerability with a CVSS score of 7.8 (HIGH). Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

How severe is CVE-2026-62886?

CVE-2026-62886 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-62886?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Visual Studio 2022, Microsoft Visual Studio 2026, Microsoft .Net, Microsoft Windows.