AUGUST 4, 2026
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Case File

CVE-2020-27782

HIGH · CVSS 7.5 EPSS 1.41%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-23 · Last synced 2026-08-04

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CVE
CVE-2020-27782
Severity
HIGH
CVSS
7.5
EPSS
1.41%

Original NVD Description

A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.