{"id":"CVE-2026-107613","revision":null,"records":[{"revision":"de83c7e3bb3d4416a1d3205857d7992a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107613","aliases":[],"title":"NULL pointer dereference in TightVNC Server Win8ScreenDriver after failed DXGI re-initialization","description":"A NULL pointer dereference vulnerability in the Win8ScreenDriver component of GlavSoft TightVNC Server for Windows before 2.8.88 allows an attacker to crash the server, causing a denial of service. When re-initialization of the DXGI Desktop Duplication driver fails in applyNewScreenProperties() (for example after a GPU reset, display hot-plug or session change), m_drvImpl is left NULL and is subsequently dereferenced without a check by executeDetection(), getScreenBuffer(), grabFb(), getScreenPropertiesChanged() and getCursorPosition().","state":0,"publishedAt":"2026-10-08T13:39:56.972+00:00","modifiedAt":"2026-10-08T14:01:33.803+00:00","affected":[{"ecosystem":"Vendor product","name":"TightVNC","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"GlavSoft\",\n                    \"product\": \"TightVNC\",\n                    \"platforms\": [\n                        \"Windows\"\n                    ],\n                    \"modules\": [\n                        \"TightVNC Server (Win8/DXGI screen driver)\"\n                    ],\n                    \"programFiles\": [\n                        \"Win8ScreenDriver.cpp\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"Win8ScreenDriver::applyNewScreenProperties()\"\n                        },\n                        {\n                            \"name\": \"Win8ScreenDriver::executeDetection()\"\n                        },\n                        {\n                            \"name\": \"Win8ScreenDriver::getScreenBuffer()\"\n                        },\n                        {\n                            \"name\": \"Win8ScreenDriver::grabFb()\"\n                        },\n                        {\n                            \"name\": \"Win8ScreenDriver::getScreenPropertiesChanged()\"\n                        },\n                        {\n                            \"name\": \"Win8ScreenDriver::getCursorPosition()\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.8.88\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9,"severity":"MEDIUM"}],"references":["https://sourceforge.net/p/vnc-tight/bugs/1660/","https://www.tightvnc.com/whatsnew.php"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107613","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107613","identifiers":["CVE-2026-107613"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T09:26:00.1517867+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T09:26:00.1517867+00:00","lastSuccessAt":"2026-11-11T09:26:00.3919657+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:00.3919664+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-f19af5e22c13aa688d23829fe96c281d0deaf6cf2f8cee6748f54f5a479127b2","complete":true,"records":424021,"lastAttemptAt":"2026-11-11T09:25:54.6180937+00:00","lastSuccessAt":"2026-11-11T09:25:54.5258746+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.6180937+00:00","snapshotPublishedAt":"2026-11-11T09:25:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-088d2b6b9252462fbe4787ccd1f019d8","complete":false,"records":13758,"lastAttemptAt":"2026-11-11T09:33:15.3733862+00:00","lastSuccessAt":"2026-11-11T09:33:15.465406+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:33:15.465406+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T09:26:00.1517867+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T09:26:00.1517867+00:00","lastSuccessAt":"2026-11-11T09:26:00.3927797+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:00.3927799+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-304fa97221904da4b3dcd306fc4b8a4b","complete":true,"records":13752,"lastAttemptAt":"2026-11-11T09:26:01.4581358+00:00","lastSuccessAt":"2026-11-11T09:26:01.454+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:01.454+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13812,"expectedIdentifiers":13812,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T09:25:54.9948719+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.9948719+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T09:25:54.7785287+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.7785287+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-2bc186fc4a8179fd66d765079d475b0b8e3af9f89b57dcc310e7773ded48b2cc","complete":true,"records":3088,"lastAttemptAt":"2026-11-11T09:26:00.1096189+00:00","lastSuccessAt":"2026-11-11T09:25:59.9234294+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:26:00.1096189+00:00","snapshotPublishedAt":"2026-11-11T09:02:55+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-085e065fc9050ae18408f7e722c39653aeb186872334d7b3ec1fcafb7ed43d25","complete":true,"records":231665,"lastAttemptAt":"2026-11-11T09:25:54.8906223+00:00","lastSuccessAt":"2026-11-11T08:27:45.2700102+00:00","error":null,"lastVerifiedAt":"2026-11-11T09:25:54.8906223+00:00","snapshotPublishedAt":"2026-11-11T07:32:59+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}