CVE-2025-20256: A vulnerability in the web-based management interface of Cisco Secure Network Analytics Manager and Cisco Secu

Routine

MEDIUM 6.5DOWNGRADE

CVE-2025-20256 is a medium-severity flaw (CVSS 6.5) affecting secure network analytics. 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 Secure Network Analytics Manager and Cisco Secure Network Analytics Virtual Manager could allow an authenticated, remote attacker with valid administrative credentials to execute arbitrary commands as root on the underlying operating system. This vulnerability is due to insufficient input validation in specific fields of the web-based management interface. An attacker with valid ad

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-74
Published	2025-05-21
Last modified	2026-06-17

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

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-21 17:15 UTCPublished CVE record published
2026-06-17 08:41 UTCUpdated Record last modified

cisco secure network analytics DOWNGRADE

Affected: 7.4.1 · 7.4.2 · 7.5.0 · 7.5.1 · 7.5.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.4.1

1. Check installed version

apt-cache policy secure-network-analytics || rpm -q secure-network-analytics || secure-network-analytics --version

2. No fixed release: DOWNGRADE to a release before 7.4.1 (Debian / Ubuntu)

apt-cache madison secure-network-analytics sudo apt install secure-network-analytics=<VERSION_BEFORE_7.4.1> sudo apt-mark hold secure-network-analytics

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list secure-network-analytics sudo dnf downgrade secure-network-analytics-<VERSION_BEFORE_7.4.1> sudo dnf versionlock add secure-network-analytics

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-20256?

secure network analytics: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-20256 being exploited?

CVE-2025-20256 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-2025-20256 affect?

CVE-2025-20256 affects secure network analytics. Severity is medium (CVSS 6.5). A vulnerability in the web-based management interface of Cisco Secure Network Analytics Manager and Cisco Secure Network Analytics Virtual Manager could allow an authenticated, remote attacker with valid administrative credentials to execut

How urgent is CVE-2025-20256?

Priority 35/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities

Related CVEs

CVE-2025-20257 MEDIUM 6.5 DOWNGRADE A vulnerability in an API subsystem of Cisco Secure Network Analytics Manager and Cisco Secure Network Analyti
CVE-2025-20178 MEDIUM 6.0 DOWNGRADE A vulnerability in the web-based management interface of Cisco Secure Network Analytics could allow an authent
CVE-2022-20663 MEDIUM 6.1 UPGRADE A vulnerability in the web-based management interface of Cisco Secure Network Analytics, formerly Stealth

References

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