{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-0821", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-01-09T18:24:17.150Z", "datePublished": "2026-01-10T13:02:07.698Z", "dateUpdated": "2026-02-23T08:27:54.300Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-02-23T08:27:54.300Z" }, "title": "quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow", "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-122", "lang": "en", "description": "Heap-based Buffer Overflow" } ] }, { "descriptions": [ { "type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption" } ] } ], "affected": [ { "vendor": "quickjs-ng", "product": "quickjs", "versions": [ { "version": "0.1", "status": "affected" }, { "version": "0.2", "status": "affected" }, { "version": "0.3", "status": "affected" }, { "version": "0.4", "status": "affected" }, { "version": "0.5", "status": "affected" }, { "version": "0.6", "status": "affected" }, { "version": "0.7", "status": "affected" }, { "version": "0.8", "status": "affected" }, { "version": "0.9", "status": "affected" }, { "version": "0.10", "status": "affected" }, { "version": "0.11.0", "status": "affected" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue." } ], "metrics": [ { "cvssV4_0": { "version": "4.0", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM" } }, { "cvssV3_1": { "version": "3.1", "baseScore": 7.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseSeverity": "HIGH" } }, { "cvssV3_0": { "version": "3.0", "baseScore": 7.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseSeverity": "HIGH" } }, { "cvssV2_0": { "version": "2.0", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C" } } ], "timeline": [ { "time": "2026-01-09T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed" }, { "time": "2026-01-09T01:00:00.000Z", "lang": "en", "value": "VulDB entry created" }, { "time": "2026-01-16T01:25:36.000Z", "lang": "en", "value": "VulDB entry last update" } ], "credits": [ { "lang": "en", "value": "mcsky23 (VulDB User)", "type": "reporter" } ], "references": [ { "url": "https://vuldb.com/?id.340355", "name": "VDB-340355 | quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow", "tags": [ "vdb-entry", "technical-description" ] }, { "url": "https://vuldb.com/?ctiid.340355", "name": "VDB-340355 | CTI Indicators (IOB, IOC, IOA)", "tags": [ "signature", "permissions-required" ] }, { "url": "https://vuldb.com/?submit.731780", "name": "Submit #731780 | quickjs-ng quickjs v0.11.0 Heap-based Buffer Overflow", "tags": [ "third-party-advisory" ] }, { "url": "https://github.com/quickjs-ng/quickjs/issues/1296", "tags": [ "issue-tracking" ] }, { "url": "https://github.com/quickjs-ng/quickjs/pull/1299", "tags": [ "issue-tracking" ] }, { "url": "https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395", "tags": [ "exploit", "issue-tracking" ] }, { "url": "https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5", "tags": [ "patch" ] }, { "url": "https://github.com/quickjs-ng/quickjs/", "tags": [ "product" ] } ], "tags": [ "x_open-source" ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-12T14:36:45.372311Z", "id": "CVE-2026-0821", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-12T14:36:51.911Z" } } ] } }