CVE-2020-9481
HIGHCVSS 7.5/10EPSS 2.39%
Last modified
CVE-2020-9481 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 2.39% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Traffic Server | >= 6.0.0, <= 6.2.3 |
| Apache | Traffic Server | >= 7.0.0, <= 7.1.9 |
| Apache | Traffic Server | >= 8.0.0, <= 8.0.6 |
| Debian | Debian Linux | 10.0 |
References
- https://lists.apache.org/thread.html/r21ddaf0a4a973f3c43c7ff399ae50d2f858f13f87bd6a9551c5cf6db%40%3Cannounce.trafficserver.apache.org%3EMailing List, Patch, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4672Third Party Advisory
- https://lists.apache.org/thread.html/r21ddaf0a4a973f3c43c7ff399ae50d2f858f13f87bd6a9551c5cf6db%40%3Cannounce.trafficserver.apache.org%3EMailing List, Patch, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4672Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-9481?
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.
How severe is CVE-2020-9481?
CVE-2020-9481 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.39% probability of exploitation in the next 30 days.
How do I fix CVE-2020-9481?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-9481?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST