Auth bypass in Cisco Prime Infrastructure
CVE-2026-20189
A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server. This vulnerability is due to insufficient authorization checks on the download service API. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to download sensitive log files that they would otherwise not have authorization to access. To exploit this vulnerability, the attacker must have valid credentials to access the web-based management interface of the affected device.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Cisco Prime Infrastructure — versions 3.6.0, 3.7.0, 3.4.0
- Cisco Prime Infrastructure — versions 3.10.6
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20189?
- CVE-2026-20189 is a medium-severity vulnerability in Cisco Prime Infrastructure, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-05-06.
- How severe is CVE-2026-20189?
- Medium severity. CVSS v3 base score is 4.3 out of 10.