CVE-2025-52692

Bypass Authentication

Published Dec 19, 2025 CVSS 3.1 · 8.8 High EPSS 6.4% KEV · Not listed
Description
Successful exploitation of the vulnerability could allow an attacker with local network access to send a specially crafted URL to access certain administration functions without login credentials.

Remediation

Vendor Workaround

As the Linksys E9450-SG has reached End-of-Life status, no firmware update is planned for this issue. Users and administrators of the affected product version are advised to: * Disable remote administration * Restrict router management access to trusted devices on the local network * Avoid enabling Telnet access * Consider upgrading to a model actively supported by Linksys

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Linksys e9450-sg Firmware
CPEs cpe:2.3:h:linksys:e9450-sg:-:*:*:*:*:*:*:*
cpe:2.3:o:linksys:e9450-sg_firmware:1.2.00.052:*:*:*:*:*:*:*
Vendors & Products Linksys e9450-sg Firmware
Type Values Removed Values Added
Weaknesses CWE-306
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Linksys
Linksys e9450-sg
Vendors & Products Linksys
Linksys e9450-sg
Type Values Removed Values Added
Description Successful exploitation of the vulnerability could allow an attacker with local network access to send a specially crafted URL to access certain administration functions without login credentials.
Title Bypass Authentication
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CSA
Published
Updated
Dec 19, 2025, 3:37 PM
Reserved
Jun 19, 2025, 6:04 AM
Status
Analyzed
Published
Dec 19, 2025, 2:16 AM
Modified
Sep 30, 2026, 11:10 PM