Is CVE-2021-3654 in the CISA KEV catalog?

No. CVE-2021-3654 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3654?

CVE-2021-3654 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-3654?

CVE-2021-3654 has an EPSS score of 26.79% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3654?

Upgrade nova on debian 12 to 2:23.0.2-3 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3654

MEDIUMEPSS 98th pctl

6.1

CVSS v3

NVD

Description

A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.

CWE-601Open Redirect

How to fix

Remediation Available

novaDebian

Fixed in:2:23.0.2-3CVE-2021-3654

novaUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

nova-commonUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

python-novaUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

python3-novaUbuntu

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

26.79%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Patch7

Other references1

security.gentoo.org

Related Vulnerabilities

Other CWE-601 (Open Redirect) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-4123	High	7.6	98%	-	Fix
CVE-2018-11784	Medium	4.3	94%	-	Fix
CVE-2021-22881	Medium	6.1	87%	-	Fix
CVE-2022-45402	Medium	6.1	82%	-	Fix
CVE-2017-1000117	High	8.8	78%	-	Fix
CVE-2019-10098	Medium	6.1	74%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.