AUGUST 4, 2026
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Case File

CVE-2020-17509

HIGH · CVSS 7.5 EPSS 1.79%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-01-11 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Apache.

CVE
CVE-2020-17509
Severity
HIGH
CVSS
7.5
EPSS
1.79%
Apache

Original NVD Description

ATS negative cache option is vulnerable to a cache poisoning attack. If you have this option enabled, please upgrade or disable this feature. Apache Traffic Server versions 7.0.0 to 7.1.11 and 8.0.0 to 8.1.0 are affected.

Related CVEs

Other vulnerabilities affecting the same vendor(s)