CVE-2026-20175: External Control of File Name or Path in Cisco Cisco Finesse
CVE-2026-20175 is a medium severity vulnerability in Cisco Finesse that allows an unauthenticated remote attacker to load arbitrary files from remote locations into an active user session. This occurs due to insufficient validation of user-supplied input in HTTP requests. Exploitation requires persuading a user to click a crafted link containing the affected device address, potentially leading to browser-based attacks and arbitrary script execution within the affected interface.
AI Analysis
Technical Summary
This vulnerability in Cisco Finesse arises from improper validation of user-supplied input in HTTP requests, enabling an unauthenticated remote attacker to load arbitrary files into an active user session. An attacker with knowledge of the device address can craft a link that, when clicked by a user, may lead to browser-based attacks such as script execution or unauthorized access to sensitive information within the interface. The CVSS 3.1 base score is 6.1 (medium), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity with no availability impact. The vulnerability affects numerous specific versions of Cisco Finesse as listed.
Potential Impact
Successful exploitation can allow an attacker to execute arbitrary script code in the context of the affected Cisco Finesse interface or access sensitive information on the device. This could lead to browser-based attacks impacting user sessions. There is no indication of impact on system availability. The attack requires user interaction (clicking a crafted link) and knowledge of the device address.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented in the provided data. Until a patch is available, users should exercise caution with unsolicited links referencing Cisco Finesse devices and consider restricting access to the affected interfaces where possible.
CVE-2026-20175: External Control of File Name or Path in Cisco Cisco Finesse
Description
CVE-2026-20175 is a medium severity vulnerability in Cisco Finesse that allows an unauthenticated remote attacker to load arbitrary files from remote locations into an active user session. This occurs due to insufficient validation of user-supplied input in HTTP requests. Exploitation requires persuading a user to click a crafted link containing the affected device address, potentially leading to browser-based attacks and arbitrary script execution within the affected interface.
CVSS v3.1
Score 6.1medium
Affected software
pkg:github/cisco/finesseRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Cisco Finesse arises from improper validation of user-supplied input in HTTP requests, enabling an unauthenticated remote attacker to load arbitrary files into an active user session. An attacker with knowledge of the device address can craft a link that, when clicked by a user, may lead to browser-based attacks such as script execution or unauthorized access to sensitive information within the interface. The CVSS 3.1 base score is 6.1 (medium), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity with no availability impact. The vulnerability affects numerous specific versions of Cisco Finesse as listed.
Potential Impact
Successful exploitation can allow an attacker to execute arbitrary script code in the context of the affected Cisco Finesse interface or access sensitive information on the device. This could lead to browser-based attacks impacting user sessions. There is no indication of impact on system availability. The attack requires user interaction (clicking a crafted link) and knowledge of the device address.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented in the provided data. Until a patch is available, users should exercise caution with unsolicited links referencing Cisco Finesse devices and consider restricting access to the affected interfaces where possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.392Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a206578e29bf47b50d40f9a
Added to database: 06/03/2026, 17:33:44 UTC
Last enriched: 06/10/2026, 19:41:54 UTC
Last updated: 07/31/2026, 19:22:57 UTC
Views: 81
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