Vulnerability in Cisco Enterprise Nfv Infrastructure Software
CVE-2026-20288
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with Admin privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. Cisco has assigned this vulnerability a SIR of High rather than Medium as the score indicates because additional security implications could occur when the attacker becomes root.
EPSS: 0.004 (32.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Cisco Enterprise Nfv Infrastructure Software — versions 26.1.1, 3.10.1, 3.10.2
- Cisco Unified Computing System E-series Software (Ucse) — versions 3.2.7, 3.2.6, 3.2.4
- Cisco Unified Computing System (Standalone) — versions 4.0(2g), 3.1(2i), 3.1(1d)
- Cisco Unified_computing_system — versions 3.1(1d), 3.1(2b), 3.1(2c)
- Cisco Unified_computing_system_e-series_software — versions 3.1.0, 3.1.1, 3.1.2
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20288?
- CVE-2026-20288 is a medium-severity vulnerability in Cisco Enterprise Nfv Infrastructure Software, classified under CWE-146. CVSS score: 6.5/10. Published 2026-08-05.
- How severe is CVE-2026-20288?
- Medium severity. CVSS v3 base score is 6.5 out of 10.