User redirection via unvalidated HTTP parameters
Published Feb 4, 2026 · Updated Feb 4, 2026
Open redirect in the web management interfaces of Cisco EPNM and Prime Infrastructure allows remote attackers to redirect users to malicious pages. The redirect logic insufficiently validates HTTP request parameters before using them to select the destination of a redirect response. Exploitation requires interception and modification of a user's HTTP request, after which the affected user is sent to a malicious page.
Summary
What happened
Open redirect in the web management interfaces of Cisco EPNM and Prime Infrastructure allows remote attackers to redirect users to malicious pages. The redirect logic insufficiently validates HTTP request parameters before using them to select the destination of a redirect response. Exploitation requires interception and modification of a user's HTTP request, after which the affected user is sent to a malicious page.
The record
- CVE
- CVE-2026-20123
- Published
- Feb 4, 2026
- Updated
- Feb 4, 2026
- Vendor
- ClamAV
- Product
- Cisco Prime Infrastructure
- Classifications
- CWE-601, CAPEC-178, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 4, 2026CVE publishedPublication date reported by the CVE source.
- Feb 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.10
- Affected versionversion=3.10.0
- Affected versionversion=3.10.1
- Affected versionversion=3.10.2
- Affected versionversion=3.10.3
- Affected versionversion=3.10.4
- Affected versionversion=3.10.4 Update 01
- Affected versionversion=3.10.4 Update 02
- Affected versionversion=3.10.4 Update 03
- Affected versionversion=3.10.5
- Affected versionversion=3.10.6
- Affected versionversion=3.10.6 Security Update 03
- Affected versionversion=3.10.6 Update 01
- Affected versionversion=3.10 Update 01
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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