What is CVE-2021-32780?

CVE-2021-32780 is a high-severity vulnerability in Envoyproxy Envoy, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 8.6/10. Published 2021-08-24.

How severe is CVE-2021-32780?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Envoyproxy Envoy

CVE-2021-32780

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions Envoy transitions a H/2 connection to the CLOSED state when it receives a GOAWAY frame without any stream…

EPSS: 0.001 (21.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Envoyproxy Envoy — versions >= 1.19.0, < 1.19.1, >= 1.18.0, < 1.18.4

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history (x_refsource_MISC)
github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2021-32780?: CVE-2021-32780 is a high-severity vulnerability in Envoyproxy Envoy, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 8.6/10. Published 2021-08-24.
How severe is CVE-2021-32780?: High severity. CVSS v3 base score is 8.6 out of 10.