April 2026 Patch TuesdayKB5002861Out-of-band action

Microsoft · KB5002861

Linked CVE review

Deploy Microsoft Microsoft Office security update KB5002861

Linked CVEs
2
Confirmed exploited
1
PoC or lab evidence
0
Maximum CVSS
6.5
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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2 of 2 linked CVEs shown
Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-32201 Immediate evidence
Microsoft SharePoint Server Improper Input Validation Vulnerability

Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.

6.5 · CVSS 3.1 · MediumSource: CNAConfirmed in the wildCISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2026-04-14.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 43.4% · 98.7th percentileForecast date: 2026-10-08NETWORK · LOW complexity · NONE privileges · NONE user interactionPatch nowCISA confirms exploitation in the wild and lists 2026-04-28 as the remediation due date.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.
CVE-2026-20945 Elevated EPSS forecast
Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

4.6 · CVSS 3.1 · MediumSource: 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: 19.1% · 97.3th percentileForecast date: 2026-10-08NETWORK · LOW complexity · LOW privileges · REQUIRED user interactionScheduledMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.Mitigation available. No fixed version is explicitly recorded in the structured CVE data.