CVE-2025-30157 — MEDIUM (6.5)

Q: How severe is CVE-2025-30157?

CVE-2025-30157 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-30157?

Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy.

Vulnerability Description

Envoy is a cloud-native high-performance edge/middle/service proxy. Prior to 1.33.1, 1.32.4, 1.31.6, and 1.30.10, Envoy's ext_proc HTTP filter is at risk of crashing if a local reply is sent to the external server due to the filter's life time issue. A known situation is the failure of a websocket handshake will trigger a local reply leading to the crash of Envoy. This vulnerability is fixed in 1.33.1, 1.32.4, 1.31.6, and 1.30.10.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Envoyproxy	Envoy	< 1.30.10

Related Weaknesses (CWE)

CWE-460

References

FAQ

What is CVE-2025-30157?

CVE-2025-30157 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Envoy is a cloud-native high-performance edge/middle/service proxy. Prior to 1.33.1, 1.32.4, 1.31.6, and 1.30.10, Envoy's ext_proc HTTP filter is at risk of crashing if a local reply is sent to the ex...

How severe is CVE-2025-30157?

CVE-2025-30157 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-30157?

Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy.