CVE-2026-20111: Cisco Prime Infrastructure · Use of Hard-coded Credentials
Affects Cisco Prime InfrastructureSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 26 Oct 2026, 07:57 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CiscoCisco Prime Infrastructure | Affected
| Fixed in– |
AI-suggested
1. Immediate application of Cisco's security updates and patches for all affected versions of Cisco Prime Infrastructure as soon as they become available. 2. Enforce strict access controls and multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise. 3. Regularly audit and monitor administrative account usage and login activities to detect suspicious behavior early. 4. Implement Content Security Policy (CSP) headers and other browser security mechanisms to mitigate the impact of potential XSS attacks. 5. Limit the number of users with administrative privileges to the minimum necessary and ensure they are trained on secure usage practices. 6. Conduct periodic security assessments and penetration testing focused on the management interface to identify and remediate input validation weaknesses. 7. Use network segmentation to isolate management interfaces from general user networks, reducing exposure. 8. Employ web application firewalls (WAFs) with custom rules to detect and block malicious payloads targeting the management interface. 9. Maintain up-to-date backups and incident response plans to quickly recover from any compromise resulting from exploitation.
Description
A vulnerability in the web-based management interface of Cisco Prime Infrastructure could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against users of the interface of an affected system. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by inserting malicious code into specific data fields in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, an attacker must have valid administrative credentials.