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CVE-2026-42363 is an insufficient encryption vulnerability in the Device Authentication functionality of GeoVision GV-IP Device Utility 9.0.5. When the utility interacts with GeoVision devices on the local network and sends privileged commands, it may transmit authentication material in UDP broadcast traffic using a proprietary symmetric encryption scheme derived from Blowfish. The implementation is fundamentally flawed because the symmetric key needed to decrypt the protected username and password is included in the same packet. As a result, the confidentiality of the credentials depends only on obscurity rather than effective cryptographic protection. An attacker on the same local network can passively capture the broadcast traffic generated when an administrator interacts with a device and recover the device credentials, which can then be used to authenticate to the affected device and issue privileged administrative actions.
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What an attacker gets, and what they’ve been doing with it.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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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.