7.5

CVE-2025-30157: envoyproxy envoy Improper Cleanup on Thrown Exception

CVSS: 7.5v3.1HighAnalyzed
AliasesGHSA-cf3q-gqg7-3fm9BIT-envoy-2025-30157openSUSE-SU-2025:14938-1
Published 21-03-2025Last modified 21-03-2025
Open JSON

Vulnerability summary

CVE-2025-30157 is a high (CVSS 7.5) Improper Cleanup on Thrown Exception vulnerability in envoyproxy envoy. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 36.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.44%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-03-2025
    PublishedVulnerability first disclosed.
  2. 21-03-2025
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

+0.02 pp

From 0.42% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Envoyproxy1 product
  • envoyEOL≥ 1.33.0, < 1.33.1 | < 1.30.10 | ≥ 1.31.0, < 1.31.6 | ≥ 1.32.0, < 1.32.4 | 1.33.0
Github.com/envoyproxy1 product
  • envoy< 1.30.10 | ≥ 1.31.0, < 1.31.6 | ≥ 1.32.0, < 1.32.4 | ≥ 1.33.0, < 1.33.1
Opensuse1 product
  • istioctl&distro=openSUSE Tumbleweed< 1.25.1-1.1

3 vendors · 3 products

References

6 links