{"api_version":"1","generated_at":"2026-07-23T14:55:22+00:00","cve":"CVE-2021-26635","urls":{"html":"https://cve.report/CVE-2021-26635","api":"https://cve.report/api/cve/CVE-2021-26635.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-26635","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26635"},"summary":{"title":"CVE-2021-26635","description":"In the code that verifies the file size in the ark library, it is possible to manipulate the offset read from the target file due to the wrong use of the data type. An attacker could use this vulnerability to cause a stack buffer overflow and as a result, perform an attack such as remote code execution.","state":"PUBLIC","assigner":"vuln@krcert.or.kr","published_at":"2022-06-02 14:15:00","updated_at":"2023-06-26 17:58:00"},"problem_types":["CWE-843"],"metrics":[],"references":[{"url":"https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66747","name":"https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66747","refsource":"MISC","tags":[],"title":"Security Advisory | KrCERT/CC - KISA 인터넷 보호나라&KrCERT","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-26635","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26635","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"26635","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"bandisoft","cpe5":"ark_library","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"vuln@krcert.or.kr","ID":"CVE-2021-26635","STATE":"PUBLIC","TITLE":"Bandisoft ARK Library buffer overflow vulnerability"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"ark library","version":{"version_data":[{"platform":"Windows, Mac OS, Linux and etc.","version_affected":"<=","version_value":"7.17"}]}}]},"vendor_name":"Bandisoft International Inc."}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In the code that verifies the file size in the ark library, it is possible to manipulate the offset read from the target file due to the wrong use of the data type. An attacker could use this vulnerability to cause a stack buffer overflow and as a result, perform an attack such as remote code execution."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-121 Stack-based Buffer Overflow"}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66747","name":"https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66747"}]},"source":{"discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2022-06-02 14:15:00","lastModifiedDate":"2023-06-26 17:58:00","problem_types":["CWE-843"],"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:bandisoft:ark_library:*:*:*:*:*:*:*:*","versionEndExcluding":"7.17","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"26635","Ordinal":"201706","Title":"CVE-2021-26635","CVE":"CVE-2021-26635","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"26635","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}