Home › Exploited CVEs › CVE-2026-21525
CVE-2026-21525: Microsoft Windows NULL Pointer Dereference Vulnerability
Microsoft Windows · in CISA KEV since 2026-02-10
2026-02-10added to KEV
2026-03-03federal remediation due date
5.04%EPSS exploit probability (30 days) 91.9th percentile
6.2 MEDIUMCVSS 3.1
Unknownknown ransomware use
0days from NVD publication to KEV
What it is
Microsoft Windows Remote Access Connection Manager contains a NULL pointer dereference that could allow an unauthorized attacker to deny service locally.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-476 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD published | 2026-02-10 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2026-21525.json · all KEV CVEs
Kevscope: daily CISA KEV + EPSS datasetThe whole KEV catalog joined with daily EPSS and CVSS scores as CSV/Parquet, refreshed daily. Free to download.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.