CVE-2020-12603
HIGHCVSS 7.5/10EPSS 1.45%
Last modified
CVE-2020-12603 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when proxying HTTP/2 requests or responses with many small (i.e. 1 byte) data frames.. EPSS estimates a 1.45% chance of exploitation in the next 30 days.
Description
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when proxying HTTP/2 requests or responses with many small (i.e. 1 byte) data frames.
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 |
|---|---|---|
| Envoyproxy | Envoy | <= 1.12.4 |
| Envoyproxy | Envoy | 1.13.2 |
| Envoyproxy | Envoy | 1.14.2 |
References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-pc38-4q6c-85p6Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-pc38-4q6c-85p6Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12603?
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may consume excessive amounts of memory when proxying HTTP/2 requests or responses with many small (i.e. 1 byte) data frames.
How severe is CVE-2020-12603?
CVE-2020-12603 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12603?
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-2020-12603?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST