{"api_version":"1","generated_at":"2026-07-23T12:03:13+00:00","cve":"CVE-2021-35331","urls":{"html":"https://cve.report/CVE-2021-35331","api":"https://cve.report/api/cve/CVE-2021-35331.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-35331","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-35331"},"summary":{"title":"CVE-2021-35331","description":"** DISPUTED ** In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of this finding.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-07-05 15:15:00","updated_at":"2023-11-07 03:36:00"},"problem_types":["CWE-134"],"metrics":[],"references":[{"url":"https://sqlite.org/forum/info/7dcd751996c93ec9","name":"https://sqlite.org/forum/info/7dcd751996c93ec9","refsource":"MISC","tags":[],"title":"SQLite Forum: A format string vulnerability in tool used to help build SQLite's TCL extension on Windows","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://core.tcl-lang.org/tcl/info/bad6cc213dfe8280","name":"https://core.tcl-lang.org/tcl/info/bad6cc213dfe8280","refsource":"MISC","tags":[],"title":"Tcl Source Code: View Ticket","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://core.tcl-lang.org/tcl/info/28ef6c0c741408a2","name":"https://core.tcl-lang.org/tcl/info/28ef6c0c741408a2","refsource":"MISC","tags":[],"title":"Tcl Source Code: Check-in [28ef6c0c74]","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/tcltk/tcl/commit/4705dbdde2f32ff90420765cd93e7ac71d81a222","name":"https://github.com/tcltk/tcl/commit/4705dbdde2f32ff90420765cd93e7ac71d81a222","refsource":"MISC","tags":[],"title":"Fix [bad6cc213d]: A format string vulnerability in Tcl nmakehelp.c al… · tcltk/tcl@4705dbd · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-35331","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35331","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"35331","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"tcl","cpe5":"tcl","cpe6":"8.6.11","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-35331","qid":"672051","title":"EulerOS Security Update for tcl (EulerOS-SA-2022-2281)"},{"cve":"CVE-2021-35331","qid":"672067","title":"EulerOS Security Update for tcl (EulerOS-SA-2022-2236)"},{"cve":"CVE-2021-35331","qid":"672099","title":"EulerOS Security Update for tcl (EulerOS-SA-2022-2305)"},{"cve":"CVE-2021-35331","qid":"672135","title":"EulerOS Security Update for tcl (EulerOS-SA-2022-2334)"},{"cve":"CVE-2021-35331","qid":"672216","title":"EulerOS Security Update for tcl (EulerOS-SA-2022-2637)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-35331","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"** DISPUTED ** In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of this finding."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://core.tcl-lang.org/tcl/info/bad6cc213dfe8280","refsource":"MISC","name":"https://core.tcl-lang.org/tcl/info/bad6cc213dfe8280"},{"url":"https://core.tcl-lang.org/tcl/info/28ef6c0c741408a2","refsource":"MISC","name":"https://core.tcl-lang.org/tcl/info/28ef6c0c741408a2"},{"refsource":"MISC","name":"https://github.com/tcltk/tcl/commit/4705dbdde2f32ff90420765cd93e7ac71d81a222","url":"https://github.com/tcltk/tcl/commit/4705dbdde2f32ff90420765cd93e7ac71d81a222"},{"refsource":"MISC","name":"https://sqlite.org/forum/info/7dcd751996c93ec9","url":"https://sqlite.org/forum/info/7dcd751996c93ec9"}]}},"nvd":{"publishedDate":"2021-07-05 15:15:00","lastModifiedDate":"2023-11-07 03:36:00","problem_types":["CWE-134"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:tcl:tcl:8.6.11:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"35331","Ordinal":"210823","Title":"CVE-2021-35331","CVE":"CVE-2021-35331","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"35331","Ordinal":"1","NoteData":"** DISPUTED ** In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of this finding.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"35331","Ordinal":"2","NoteData":"2021-07-05","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"35331","Ordinal":"3","NoteData":"2021-07-27","Type":"Other","Title":"Modified"}]}}}