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CVE-2026-57277 is a high-severity stack-based buffer overflow vulnerability in the GeoVision GeoWebPlayer Websocket Server, an add-on used by GeoVision products such as GV-VMS and GV-Cloud to extend web interface functionality. The flaw is present in the handler for the localhost websocket command connectionInfo, which is intended to provide connection details for cameras. In the vulnerable logic, attacker-controlled JSON string fields are copied into fixed-size stack buffers using manual byte-by-byte copy loops without proper bounds checking. This unsafe handling can overflow stack memory and corrupt adjacent data structures, creating conditions for process instability and potential control-flow corruption.
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connectionInfo handling logic should be corrected to enforce strict length validation on all incoming JSON string fields before copying, and unsafe manual copy routines should be replaced with bounded memory-safe operations. Any vendor-provided fixes to the websocket server should be applied promptly.No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A stack-based buffer overflow vulnerability in GeoVision products.
A stack-based buffer overflow vulnerability in the GeoVision GeoWebPlayer websocket server's connectionInfo/connectInfo handler, caused by copying attacker-controlled JSON strings into fixed-size buffers without length checks.
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.