May 2026 Patch TuesdayKB5087061Normal patch window

Microsoft · KB5087061

Linked CVE review

Deploy Microsoft Developer Tools security update KB5087061

Linked CVEs
2
Confirmed exploited
0
PoC or lab evidence
0
Maximum CVSS
7.3
Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

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2 of 2 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-32177 Scheduled assessment
.NET Elevation of Privilege Vulnerability

A flaw was found in dotnet. A heap-based buffer overflow in .NET allows an unauthenticated attacker to elevate privileges locally.

7.3 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.57% · 45.4th percentileForecast date: 2026-10-06LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-35433 Scheduled assessment
.NET Elevation of Privilege Vulnerability

A flaw was found in dotnet. Improper input validation and an integer overflow in .NET allow an unauthenticated attacker to elevate privileges locally.

7.3 · CVSS 3.1 · HighSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.57% · 45.4th percentileForecast date: 2026-10-06LOCAL · LOW complexity · NONE privileges · REQUIRED user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data.