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CVE-2025-20240

MEDIUM
6.1
CVSS Score
Published: September 24, 2025 at 05:14 PM UTC
Updated: September 26, 2026 at 12:27 AM UTC
1 product affected across 1 vendorIOS Xe

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability in the web UI of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting attack (XSS) on an affected device. This vulnerability is due to improper sanitization of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a malicious link. A successful exploit could allow the attacker to execute a reflected XSS attack and steal user cookies from the affected device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

IOS Xe· Cisco
60%
16.10.116.10.1a16.10.1b16.10.1c16.10.1d16.10.1e16.10.1f16.10.1g16.10.1s16.10.216.10.316.11.116.11.1a16.11.1b16.11.1s16.11.216.12.116.12.1016.12.10a16.12.1116.12.1216.12.1316.12.1a16.12.1c16.12.1s16.12.1t16.12.1w16.12.1x16.12.1y16.12.1z116.12.1z216.12.216.12.2a16.12.2s16.12.316.12.3a16.12.3s16.12.416.12.4a16.12.516.12.5a16.12.5b16.12.616.12.6a16.12.716.12.816.12.916.6.116.6.1016.6.216.6.316.6.416.6.4a16.6.516.6.5a16.6.616.6.716.6.816.6.916.7.116.7.1a16.7.1b16.7.216.7.316.7.416.8.116.8.1a16.8.1b16.8.1c16.8.1d16.8.1e16.8.1s16.8.216.8.316.9.116.9.1a16.9.1b16.9.1s16.9.216.9.316.9.3a16.9.416.9.516.9.5f16.9.616.9.716.9.817.1.117.1.1a17.1.1s17.1.1t17.1.317.10.117.10.1a17.10.1b17.11.117.11.1a17.12.117.12.1a17.12.1w17.12.1x17.12.1y17.12.1z17.12.1z117.12.1z217.12.1z317.12.1z417.12.217.12.2a17.12.317.12.3a17.12.417.12.4a17.12.4b17.12.517.12.5a17.12.5b17.12.5c17.13.117.13.1a17.14.117.14.1a17.15.117.15.1a17.15.1b17.15.1w17.15.1x17.15.1y17.15.217.15.2a17.15.2b17.15.2c17.15.317.15.3a17.15.3b17.16.117.16.1a17.2.117.2.1a17.2.1r17.2.1v17.2.217.2.317.3.117.3.1a17.3.1w17.3.1x17.3.1z17.3.217.3.2a17.3.317.3.417.3.4a17.3.4b17.3.4c17.3.517.3.5a17.3.5b17.3.617.3.717.3.817.3.8a17.4.117.4.1a17.4.1b17.4.217.4.2a17.5.117.5.1a17.6.117.6.1a17.6.1w17.6.1x17.6.1y17.6.1z17.6.1z117.6.217.6.317.6.3a17.6.417.6.517.6.5a17.6.617.6.6a17.6.717.6.817.6.8a17.7.117.7.1a17.7.1b17.7.217.8.117.8.1a17.9.117.9.1a17.9.1w17.9.1x17.9.1x117.9.1y17.9.1y117.9.217.9.2a17.9.317.9.3a17.9.417.9.4a17.9.517.9.5a17.9.5b17.9.5e17.9.5f17.9.617.9.6a17.9.717.9.7a17.9.7b

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webui-xss-VWyDgjOU

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-692

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