What is CVE-2024-30255?

CVE-2024-30255 is a medium-severity vulnerability in Envoyproxy Envoy, classified under CWE-390. CVSS score: 5.3/10. Published 2024-04-04.

How severe is CVE-2024-30255?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2024-30255 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Envoyproxy Envoy

CVE-2024-30255

Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy's HTTP/2 codec…

EPSS: 0.888 (99.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Envoyproxy Envoy — versions >= 1.29.0, < 1.29.3, >= 1.28.0, < 1.28.2, >= 1.27.0, < 1.27.4

Weakness classification (CWE)

CWE-390

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-30255?: CVE-2024-30255 is a medium-severity vulnerability in Envoyproxy Envoy, classified under CWE-390. CVSS score: 5.3/10. Published 2024-04-04.
How severe is CVE-2024-30255?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2024-30255 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.