Home › Exploited CVEs › CVE-2020-1938
CVE-2020-1938: Apache Tomcat Improper Privilege Management Vulnerability
Apache Tomcat · in CISA KEV since 2022-03-03
2022-03-03added to KEV
2022-03-17federal remediation due date
99.27%EPSS exploit probability (30 days) 99.9th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
738days from NVD publication to KEV
What it is
Apache Tomcat treats Apache JServ Protocol (AJP) connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | — |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2020-02-24 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2020-1938.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.