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CVE-2026-12846 is a critical stack-based buffer overflow vulnerability in the DVRSearch service of the GeoVision GV-I/O Box 4E. DVRSearch runs by default on the device and listens for unauthenticated UDP messages on port 10001, allowing any host with network reachability to interact with the service. In the vulnerable CMD_IP_SET code path, the implementation processes attacker-influenced network configuration data and uses the length of the Net Mask field from g_network_config->net_mask to copy data into a stack-based reply buffer at a fixed offset using memcpy, without adequate bounds checking. Because the copied length is derived from strlen on the source field and not constrained against the destination buffer capacity, a crafted request can trigger attacker-controlled memory corruption on the stack.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A buffer overflow vulnerability in GeoVision products.
A critical remote buffer overflow vulnerability in the GeoVision GV-I/O Box DVRSearch service, specifically involving the CMD_IP_SET handling and a stack overflow in the Net Mask field.
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.