High severity · published Mar 21, 2025
CVE-2025-30157
Envoy is a cloud-native high-performance edge/middle/service proxy
7.5
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EN
Envoy · Envoyproxy
before 1.30.10; 1.31.0 before 1.31.6; 1.32.0 before 1.32.4; 1.33.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-30157
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-30157
Patch
https://github.com/envoyproxy/envoy/commit/8eda1b8ef5ba8663d16a737ab99458c039a9b53c
Vendor Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-cf3q-gqg7-3fm9
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