CVE-2026-20220: A vulnerability in the web-based management interface of Cisco Crosswork Network Controller could allow an&nbs

Q: How do I fix CVE-2026-20220?

crosswork network controller: upgrade to 7.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-20220 being exploited?

CVE-2026-20220 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-2026-20220 affect?

CVE-2026-20220 affects crosswork network controller. Severity is medium (CVSS 6.3). A vulnerability in the web-based management interface of Cisco Crosswork Network Controller could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to insufficient

Q: How urgent is CVE-2026-20220?

Priority 26/100. No elevated risk signals yet.

Routine

MEDIUM 6.3UPGRADE

CVE-2026-20220 is a medium-severity flaw (CVSS 6.3) affecting crosswork network controller. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the web-based management interface of Cisco Crosswork Network Controller could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to insufficient input validation in the configuration template engine of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the affected device. A successful

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-74
Published	2026-06-17
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

2026-06-17 17:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

cisco crosswork network controller UPGRADE

Affected: < 7.1.3 · 7.2.0

Fixed in: 7.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy crosswork-network-controller || rpm -q crosswork-network-controller || crosswork-network-controller --version

2. UPGRADE to 7.1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade crosswork-network-controller

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade crosswork-network-controller

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-2026-20220?

crosswork network controller: upgrade to 7.1.3. Exact commands for each OS are on this page.

Is CVE-2026-20220 being exploited?

CVE-2026-20220 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-2026-20220 affect?

CVE-2026-20220 affects crosswork network controller. Severity is medium (CVSS 6.3). A vulnerability in the web-based management interface of Cisco Crosswork Network Controller could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to insufficient

How urgent is CVE-2026-20220?

Priority 26/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities

References

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