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Fencer Vulns
high 7.5

CVE-2020-25018 json

Envoy master between 2d69e30 and 3b5acb2 may fail to parse request URL that requires host canonicalization.

published 2020-10-01 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17717

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

Envoy master between 2d69e30 and 3b5acb2 may fail to parse request URL that requires host canonicalization.

Patch / fix

  • envoyproxy envoy 3b5acb2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-25018 updated cvss 7.5

envoyproxy/envoy: Null pointer deference in URL parsing

  • Red Hat OpenShift Service Mesh 1 servicemesh-proxy
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.