HOMEVULNERABILITIESCVE-2025-30157
HIGH

CVE-2025-30157

CWE-460Published: March 21, 2025· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-30157 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

envoyproxy1 product(s)
envoy
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/envoyproxy/envoy/commit/8eda1b8ef5ba8663d16a737ab99458c039a9b53c
ADVISORYhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-cf3q-gqg7-3fm9
ADVISORYhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-cf3q-gqg7-3fm9

All References (3)

→
https://github.com/envoyproxy/envoy/commit/8eda1b8ef5ba8663d16a737ab99458c039a9b53cPatch
→
https://github.com/envoyproxy/envoy/security/advisories/GHSA-cf3q-gqg7-3fm9Vendor Advisory
→
https://github.com/envoyproxy/envoy/security/advisories/GHSA-cf3q-gqg7-3fm9Vendor Advisory

Quick Facts

CVE IDCVE-2025-30157
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-460
CISA KEVNo
Affected1 vendor(s)
PublishedMar 21, 2025

Related CVEs (CWE-460)

CVE-2022-22150
8.8
CVE-2026-40583
8.2
CVE-2022-4744
7.8
CVE-2024-0316
7.5
CVE-2024-20354
7.4
CVE-2021-34716
7.2

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-30157 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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