Actively exploited in the wild
Microsoft Windows NULL Pointer Dereference Vulnerability
Microsoft - Windows · Listed in the CISA KEV since 2026-02-10. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2026-21525
MediumCVSS 6.2KEVSummary
A null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to cause a denial of service locally.
Risk Assessment
The risk includes potential local disruption of the remote access service, which could affect system availability for users.
Recommendation
Apply the relevant Microsoft system updates and restrict system access for unauthorized users.
Other vulnerabilities in Windows Remote Access Connection Manager
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Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to execute code locally.
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Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
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Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
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Use-after-free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
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Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- CVE-2026-62758High
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.