{"id":"CVE-2026-107615","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107615","generatedAt":"2026-10-28T02:25:01.312Z","title":"An uncontrolled search path element vulnerability in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to execute arbitrary code with SYSTEM privileges.","description":"An uncontrolled search path element vulnerability in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to execute arbitrary code with SYSTEM privileges. DynamicLibrary::init() (and ThemeLib) load screenhooks32.dll / screenhooks64.dll with LoadLibrary() using a bare file name and no LOAD_LIBRARY_SEARCH_* flags, so the TightVNC service follows the default DLL search order and loads an attacker-planted DLL from a writable directory earlier in that order (for example, an installation directory with permissive ACLs).","published":"2026-10-08T14:16:50.000Z","lastModified":"2026-10-08T21:10:00.000Z","status":"Awaiting Analysis","sourceIdentifier":"33c584b5-0579-4c06-b2a0-8d8329fcab9c","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-427"],"affected":[],"epss":{"score":0.0014,"percentile":0.03313,"date":"2026-10-26","history":[{"date":"2026-10-09","score":0.0014,"percentile":0.02883}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T14:16:50.000Z","detail":{"score":"7.8","severity":"HIGH","publishedAt":"2026-10-08T14:16:50.313Z"},"summary":"New CVE, high severity (CVSS 7.8)."}],"references":[{"url":"https://sourceforge.net/p/vnc-tight/bugs/1666/","source":"33c584b5-0579-4c06-b2a0-8d8329fcab9c"},{"url":"https://www.tightvnc.com/whatsnew.php","source":"33c584b5-0579-4c06-b2a0-8d8329fcab9c"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107615","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}