CVE-2026-20042: A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has t

Q: How do I fix CVE-2026-20042?

nexus dashboard: upgrade to 4.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-20042 being exploited?

CVE-2026-20042 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-20042 affect?

CVE-2026-20042 affects nexus dashboard. Severity is medium (CVSS 6.5). A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information. This vulnerability exist

Q: How urgent is CVE-2026-20042?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-20042 is a medium-severity flaw (CVSS 6.5) affecting nexus dashboard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information. This vulnerability exists because authentication details are included in the encrypted backup files. An attacker with a valid backup file and encryption password from an affected device could decrypt the backup file. The attacker coul

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-295
Published	2026-04-01
Last modified	2026-10-26

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 17:28 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

cisco nexus dashboard UPGRADE

Affected: < 4.2.1

Fixed in: 4.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy nexus-dashboard || rpm -q nexus-dashboard || nexus-dashboard --version

2. UPGRADE to 4.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nexus-dashboard

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nexus-dashboard

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-20042?

nexus dashboard: upgrade to 4.2.1. Exact commands for each OS are on this page.

Is CVE-2026-20042 being exploited?

CVE-2026-20042 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-20042 affect?

CVE-2026-20042 affects nexus dashboard. Severity is medium (CVSS 6.5). A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information. This vulnerability exist

How urgent is CVE-2026-20042?

Priority 28/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities

Related CVEs

CVE-2026-20174 MEDIUM 4.9 UPGRADE UPGRADE A vulnerability in the Metadata update feature of Cisco Nexus Dashboard Insights could allow an authenticated,

References

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