What’s Vulnerable › Vulnerabilities

CVE-2020-9481

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-27 · updated 2026-06-17
• Weakness: CWE-400

Description

Apache ATS 6.0.0 to 6.2.3, 7.0.0 to 7.1.9, and 8.0.0 to 8.0.6 is vulnerable to a HTTP/2 slow read attack.

Affected products

• Apache Software Foundation Apache Traffic Server: from 6.0.0 through 6.2.3; from 7.0.0 through 7.1.9; from 8.0.0 through 8.0.6
• Debian Linux: 10.0

References

• https://lists.apache.org/thread.html/r21ddaf0a4a973f3c43c7ff399ae50d2f858f13f87bd6a9551c5cf6db%40%3Cannounce.trafficserver.apache.org%3E
• https://www.debian.org/security/2020/dsa-4672
• https://lists.apache.org/thread.html/r21ddaf0a4a973f3c43c7ff399ae50d2f858f13f87bd6a9551c5cf6db%40%3Cannounce.trafficserver.apache.org%3E
• https://www.debian.org/security/2020/dsa-4672

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