Authentication bypass via crafted URL in administrative functions (CVE-2025-52692)
Insufficient authentication enforcement allows an attacker with local network access to send a specially crafted URL that reaches certain administrative functions without presenting valid login credentials, resulting in an authentication bypass for those admin endpoints.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for CVE-2025-52692, targeting the Linksys E9450-SG router (firmware 1.2.00.052). The exploit leverages an authentication bypass vulnerability in the router's HTTP API, specifically the /LOGIN/API/obj/en_telnet endpoint, which can be accessed without credentials to silently enable the device's hidden Telnet server. The exploit script (exploit.py) is written in Python and provides options to check for vulnerability, enable Telnet, and obtain an interactive root shell via Telnet (port 23). The README.md provides detailed usage instructions, attack flow, and technical background. The exploit is operational and provides full root access to the device if successful. No hardcoded IPs or credentials are present; the script is parameterized for target IP and options.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.