{"vulnerability": "CVE-2026-7838", "sightings": [{"uuid": "e511eea9-61f1-46b2-8470-e0d2c92ae54f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-7838", "type": "seen", "source": "https://bsky.app/profile/hugovalters.bsky.social/post/3mplp7gizzg2q", "content": "CVE-2026-7838 - Critical RCE in UltraVNC viewer 1.8.2.2. Integer overflow causes heap buffer overflow in RFB failure-response parsing. CVSS 8.8. No patch available - disable or restrict access now. #CVE #UltraVNC #infosec\n\nhttps://www.valtersit.com/cve/CVE-2026-7838/", "creation_timestamp": "2026-07-01T14:13:14.888991Z"}, {"uuid": "c56dcf5f-ff10-4f0c-ad3d-6673bde56f30", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-7838", "type": "seen", "source": "https://bsky.app/profile/kriptabiz.bsky.social/post/3mq7kbpn7j72i", "content": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c CVE-2026-7838 \u0432 UltraVNC: \u0443\u0433\u0440\u043e\u0437\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u044b \u0437\u0430\u0449\u0438\u0442\u044b\n\n\n\nhttps://kripta.biz/posts/8F80D016-0DCC-4BF9-8388-BE4391E3F3B3", "creation_timestamp": "2026-07-09T11:38:16.909264Z"}, {"uuid": "b58202a2-fa01-44ec-979e-c41eef27fcb8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-7838", "type": "seen", "source": "https://bsky.app/profile/cyberhub.blog/post/3mqang5j37225", "content": "\ud83d\udccc CVE-2026-7838 - UltraVNC viewer through 1.8.2.2 contains an integer overflow leading to a heap buffer overflow in the RFB protocol failure-response parsing path. In v... https://www.cyberhub.blog/cves/CVE-2026-7838", "creation_timestamp": "2026-07-09T22:07:07.072939Z"}]}