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Tuoshi/Dionlink LT15D 4G Wi-Fi devices through firmware M7628NNxlSPv2xUI_v1.0.1802.10.08_P4 and LT21B devices through firmware M7628xUSAxUIv2_v1.0.1481.15.02_P0 contain an OS command injection vulnerability in processing of JSON parameters. Shell metacharacters are not sanitized, allowing an unauthenticated network-based attacker to execute arbitrary operating-system commands as root.
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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.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.