CVE-2021-3703

It was found that the CVE-2021-27918, CVE-2021-31525 and CVE-2021-33196 have been incorrectly...

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.84%Unchanged since Aug 27, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2021-3703
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-3703
Updated: 2026-11-02

EUVDEUVD-2021-26986 No score

Record: EUVD-2021-26986
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x358-pmcq-q2x3 7.5

It was found that the CVE-2021-27918, CVE-2021-31525 and CVE-2021-33196 have been incorrectly...

Record: GHSA-x358-pmcq-q2x3
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRHSA-2021:3555 7.5

Red Hat Security Advisory: Release of OpenShift Serverless Client kn 1.17.0

Record: RHSA-2021:3555
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`openshift-serverless-clients` Red Hat:serverless:1.0::el8 From an advisory covering 8 CVEs	before 0:0.23.2-1.el8	0:0.23.2-1.el8

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases, products	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-3703 is a high vulnerability (CVSS 7.5) in Serverless, published August 26, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. No source names a fixed version.

References

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