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CVE-2026-57275 is a stack-based buffer overflow vulnerability in GeoWebPlayer, also referred to as Web Plugin in GV-VMS documentation and WS Player in VMS-Cloud. The affected component exposes a local WebSocket server used to extend the functionality of GeoVision web interfaces. Within the handler for the connectionInfo command, attacker-controlled JSON string data is copied into fixed-size stack buffers using manual byte-by-byte copy logic without proper bounds checking. This CVE specifically affects the username field when the corresponding key is present in the supplied JSON object. Supplying an overlong username value can overflow the destination stack buffer and corrupt adjacent memory.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
connectionInfo input in GeoWebPlayer/Web Plugin/WS Player. Remediation should include replacing unbounded manual string copy operations with properly bounded parsing and copy routines, validating JSON field lengths before copying, and ensuring destination buffers are sized and enforced consistently across all handled fields.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.
4 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.