March 2026 Patch TuesdayMSRC-2026-03-developer-tools-9-0-14Normal patch window

Microsoft · MSRC-2026-03-developer-tools-9-0-14

Linked CVE review

Deploy Microsoft Developer Tools update for Microsoft.Bcl.Memory 9.0

Linked CVEs
1
Confirmed exploited
0
PoC or lab evidence
0
Maximum CVSS
7.5
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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1 of 1 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-26127 Scheduled assessment
.NET Denial of Service Vulnerability

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

7.5 · 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: 1.22% · 67.8th percentileForecast date: 2026-10-08NETWORK · LOW complexity · NONE privileges · NONE user interactionWithin 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.