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CVE-2026-28742 affects all versions of multiple Naxclow IoT product lines, including Smart Doorbell X3, X Smart Home, V720, and ix cam. The vulnerability stems from Naxclow’s request-signing design: every firmware image contains the same hard-coded, platform-wide salt used to generate signatures for device and account operations. Because the signing secret is not unique per device and can be extracted from any single device or firmware image, compromise of one unit enables generation of valid signatures for arbitrary requests across the entire platform. The issue is compounded by the absence of per-device keys, lack of server-side nonce tracking or replay protection, and use of plain HTTP for control-plane traffic. Together, these weaknesses allow forged and replayed signed requests and enable impersonation of devices or accounts at platform scope.
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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.
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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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.