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CVE-2025-28137 is a pre-authentication remote command execution vulnerability in TOTOLINK A810R firmware version V4.1.2cu.5182_B20201026. The flaw is present in the setNoticeCfg function and is triggered through the NoticeUrl parameter. Insufficient validation or sanitization of attacker-controlled input allows crafted requests to inject and execute operating system commands before authentication, exposing the device’s underlying system to remote compromise.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A TOTOLINK A810R firmware vulnerability actively exploited in July 2026 and explicitly linked to Dysphoria botnet exploitation of embedded devices.
A recently exploited Totolink vulnerability used by the Dysphoria botnet for propagation.
An RCE vulnerability in Totolink devices mentioned as part of the set of known flaws leveraged for Dysphoria propagation.
A recently disclosed vulnerability listed as exploited by the Dysphoria botnet for propagation into IoT devices.
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.