AUGUST 4, 2026
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Case File

CVE-2020-13935

HIGH · CVSS 7.5 EPSS 86.61%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-07-14 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Apache. Its EPSS score suggests a 86.6% probability of exploitation in the next 30 days. It may lead to a denial-of-service condition.

CVE
CVE-2020-13935
Severity
HIGH
CVSS
7.5
EPSS
86.61%
Apache

Original NVD Description

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)