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CVE-2026-6374 is a hard-coded credentials vulnerability affecting Zyxel WAH7601 portable 4G routers through build identifier 20072026. The firmware contains undocumented credentials embedded in the device image and shared across units, creating a static authentication secret that is not unique per device. Because the credentials are baked into firmware, changing the administrator password does not remove the vulnerable condition. The weakness enables an attacker who can reach the relevant management or authentication surface to authenticate using the built-in credentials and access protected functionality or sensitive constants stored within the executable.
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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.
2 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.