What is CVE-2026-20151?

CVE-2026-20151 is a high-severity vulnerability in Cisco Smart Software Manager On-prem, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 7.3/10. Published 2026-04-01.

How severe is CVE-2026-20151?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Cisco Smart Software Manager On-prem

CVE-2026-20151

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…

EPSS: 0.000 (14.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Cisco Smart Software Manager On-prem — versions 7-202001, 8-202004, 8-202006

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

cisco-sa-cssm-priv-esc-xRAnOuO8

Frequently asked questions

What is CVE-2026-20151?: CVE-2026-20151 is a high-severity vulnerability in Cisco Smart Software Manager On-prem, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 7.3/10. Published 2026-04-01.
How severe is CVE-2026-20151?: High severity. CVSS v3 base score is 7.3 out of 10.