Skip to main content

Actively exploited

Listed in CISA’s Known Exploited Vulnerabilities catalog since May 23, 2022.

Known ransomware use

CVE-2020-0638

Microsoft Update Notification Manager Privilege Escalation Vulnerability

Microsoft · Update Notification Manager

Added to KEV May 23, 2022

Alert details

Source feed
CISA KEV
CVE ID
CVE-2020-0638
Affected products
Update Notification Manager · Microsoft Update Notification Manager · Microsoft

What happened

Microsoft Update Notification Manager contains an unspecified vulnerability that allows for privilege escalation.

What it means for your business

Microsoft Update Notification Manager is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2020-0638). Microsoft Update Notification Manager contains an unspecified vulnerability that allows for privilege escalation. CISA remediation due date: 2022-06-13. If you need help checking exposure, call (864) 335-9223.

Required action

Apply updates per vendor instructions.

CISA due date: June 13, 2022

Sources

Related briefs

HighMicrosoft MSRC

CVE-2025-10502

Heap buffer overflow in ANGLE in Microsoft Edge vulnerability

Heap buffer overflow in ANGLE in Microsoft Edge vulnerability (CVE-2025-10502) was added to Microsoft’s security update guidance. Information published. If you need help checking exposure, call (864) 335-9223.

HighMicrosoft MSRC

CVE-2026-96940

Microsoft Exchange Server Elevation of Privilege vulnerability

Microsoft Exchange Server Elevation of Privilege vulnerability (CVE-2026-96940) was added to Microsoft’s security update guidance. Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network. If you need help checking exposure, call (864) 335-9223.

Microsoft MSRC

CVE-2026-49800

Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege vulnerability

Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege vulnerability (CVE-2026-49800) was added to Microsoft’s security update guidance. Updated an acknowledgement. This is an informational change only. If you need help checking exposure, call (864) 335-9223.

Microsoft MSRC

CVE-2026-50414

Windows Media Elevation of Privilege vulnerability

Windows Media Elevation of Privilege vulnerability (CVE-2026-50414) was added to Microsoft’s security update guidance. Updated an acknowledgement. This is an informational change only. If you need help checking exposure, call (864) 335-9223.

Need help patching?

PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.