CVE-2026-20151: A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an auth

Q: How do I fix CVE-2026-20151?

smart software manager on-prem: upgrade to 9-202601. Exact commands for each OS are on this page.

Q: Is CVE-2026-20151 being exploited?

CVE-2026-20151 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-2026-20151 affect?

CVE-2026-20151 affects smart software manager on-prem. Severity is high (CVSS 7.3). A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system. This vulnerability is due to the improper transmission

Routine

HIGH 7.3UPGRADE

CVE-2026-20151 is a high-severity flaw (CVSS 7.3) affecting smart software manager on-prem. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system. This vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-201
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 smart software manager on-prem UPGRADE

Affected: < 9-202601

Fixed in: 9-202601

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy smart-software-manager-on-prem || rpm -q smart-software-manager-on-prem || smart-software-manager-on-prem --version

2. UPGRADE to 9-202601 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade smart-software-manager-on-prem

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade smart-software-manager-on-prem

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-2026-20151?

smart software manager on-prem: upgrade to 9-202601. Exact commands for each OS are on this page.

Is CVE-2026-20151 being exploited?

CVE-2026-20151 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-2026-20151 affect?

CVE-2026-20151 affects smart software manager on-prem. Severity is high (CVSS 7.3). A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system. This vulnerability is due to the improper transmission

How urgent is CVE-2026-20151?

Priority 30/100. High severity

Software pages

Cisco vulnerabilities

Related CVEs

CVE-2026-20160 CRITICAL 9.8 UPGRADE A vulnerability in Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an unauthenticated, remote a

References

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