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Fencer Vulns
high 7.5

CVE-2021-3703 json

It was found that the CVE-2021-27918, CVE-2021-31525 and CVE-2021-33196 have been incorrectly mentioned as fixed in RHSA for Serverless 1.1…

published 2022-08-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26986

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

It was found that the CVE-2021-27918, CVE-2021-31525 and CVE-2021-33196 have been incorrectly mentioned as fixed in RHSA for Serverless 1.16.0 and Serverless client kn 1.16.0. These have been fixed with Serverless 1.17.0.

Patch / fix

  • redhat openshift_serverless 1.17.0
  • openshift-serverless-clients serverless 1.0 0.23.2-1.el8

red hat advisories RHSA-2021:3555

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-2021-3703 updated cvss 7.5

serverless: incomplete fix for CVE-2021-27918 / CVE-2021-31525 / CVE-2021-33196

  • Red Hat OpenShift Serverless 1.0 openshift-serverless-clients 0.23.2-1.el8
    fixed: vendor fix RHSA-2021:3555
  • Red Hat OpenShift Serverless 1.17 openshift-serverless-1/client-kn-rhel8 0.23.2-2, openshift-serverless-1/serving-queue-rhel8 0.23.1-2, openshift-serverless-1/eventing-mtping-rhel8 0.23.0-5, openshift-serverless-1/kourier-control-rhel8 0.23.0-4, openshift-serverless-1/serving-webhook-rhel8 0.23.1-2, openshift-serverless-1/eventing-webhook-rhel8 0.23.0-5, +24 more
    fixed: vendor fix RHSA-2021:3556
  • Red Hat OpenShift Serverless knative-serving knative-serving, knative-eventing knative-eventing
    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

0.84% chance of exploitation in the next 30 days, higher than 58% 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

Affected products

  • n/a Serverless

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.