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, 10:12 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CiscoCisco Prime Infrastructure | Affected
| Fixed in– |
AI-suggested
- Immediate application of Cisco's security updates and patches for all affected versions of Cisco Prime Infrastructure as soon as they become available.
- Enforce strict access controls and multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise.
- Regularly audit and monitor administrative account usage and login activities to detect suspicious behavior early.
- Implement Content Security Policy (CSP) headers and other browser security mechanisms to mitigate the impact of potential XSS attacks.
- Limit the number of users with administrative privileges to the minimum necessary and ensure they are trained on secure usage practices.
- Conduct periodic security assessments and penetration testing focused on the management interface to identify and remediate input validation weaknesses.
- Use network segmentation to isolate management interfaces from general user networks, reducing exposure.
- Employ web application firewalls (WAFs) with custom rules to detect and block malicious payloads targeting the management interface.
- 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.