8.8

CVE-2020-35470: envoyproxy envoy

CVSS: 8.8v3.1HighModified
Published 15-12-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-35470 is a high (CVSS 8.8) vulnerability in envoyproxy envoy. EPSS estimates a 0.99% chance of exploitation in the next 30 days, higher than 61.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.99%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Envoy before 1.16.1 logs an incorrect downstream address because it considers only the directly connected peer, not the information in the proxy protocol header. This affects situations with tcp-proxy as the network filter (not HTTP filters).

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.99%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

0.00 pp

From 0.99% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.99%

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

No weakness data has been published for this record.

Affected systems

Envoyproxy1 product

1 vendor · 1 product

References

3 links