CVE-2026-91795

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-91795", "assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2", "state": "PUBLISHED", "assignerShortName": "Foxit", "dateReserved": "2026-09-15T07:34:40.287Z", "datePublished": "2026-09-23T07:51:06.870Z", "dateUpdated": "2026-09-23T14:46:49.126Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "14984358-7092-470d-8f34-ade47a7658a2", "shortName": "Foxit", "dateUpdated": "2026-09-23T07:51:06.870Z"}, "title": "Foxit PDF Editor/Reader FileOpen Uninitialized Variable Remote Code Execution Vulnerability", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-822", "description": "CWE-822 Untrusted pointer dereference", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "Potential arbitrary code execution"}]}], "affected": [{"vendor": "Foxit Software Inc.", "product": "Foxit PDF Editor", "platforms": ["Windows"], "versions": [{"status": "affected", "version": "Versions 2026.2 and earlier"}, {"status": "affected", "version": "Versions 14.0.7 and earlier"}, {"status": "affected", "version": "Versions 13.2.6 and earlier"}], "defaultStatus": "unaffected"}, {"vendor": "Foxit Software Inc.", "product": "Foxit PDF Reader", "platforms": ["Windows"], "versions": [{"status": "affected", "version": "Versions 2026.2 and earlier"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution."}]}], "references": [{"url": "https://www.foxit.com/support/security-bulletins.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Pwn2Sleep working with TrendAI Zero Day Initiative", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-23T14:46:41.289496Z", "id": "CVE-2026-91795", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-23T14:46:49.126Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-91795", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-23T14:46:41.289496Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-23T14:46:44.851Z"}}], "cna": {"title": "Foxit PDF Editor/Reader FileOpen Uninitialized Variable Remote Code Execution Vulnerability", "credits": [{"lang": "en", "type": "finder", "value": "Pwn2Sleep working with TrendAI Zero Day Initiative"}], "impacts": [{"descriptions": [{"lang": "en", "value": "Potential arbitrary code execution"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Foxit Software Inc.", "product": "Foxit PDF Editor", "versions": [{"status": "affected", "version": "Versions 2026.2 and earlier"}, {"status": "affected", "version": "Versions 14.0.7 and earlier"}, {"status": "affected", "version": "Versions 13.2.6 and earlier"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}, {"vendor": "Foxit Software Inc.", "product": "Foxit PDF Reader", "versions": [{"status": "affected", "version": "Versions 2026.2 and earlier"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.foxit.com/support/security-bulletins.html"}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.", "supportingMedia": [{"type": "text/html", "value": "Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-822", "description": "CWE-822 Untrusted pointer dereference"}]}], "providerMetadata": {"orgId": "14984358-7092-470d-8f34-ade47a7658a2", "shortName": "Foxit", "dateUpdated": "2026-09-23T07:51:06.870Z"}}}, "cveMetadata": {"cveId": "CVE-2026-91795", "state": "PUBLISHED", "dateUpdated": "2026-09-23T14:46:49.126Z", "dateReserved": "2026-09-15T07:34:40.287Z", "assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2", "datePublished": "2026-09-23T07:51:06.870Z", "assignerShortName": "Foxit"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["Windows"], "product": "Foxit PDF Editor", "vendor": "Foxit Software Inc.", "versions": [{"status": "affected", "version": "Versions 2026.2 and earlier"}, {"status": "affected", "version": "Versions 14.0.7 and earlier"}, {"status": "affected", "version": "Versions 13.2.6 and earlier"}]}, {"defaultStatus": "unaffected", "platforms": ["Windows"], "product": "Foxit PDF Reader", "vendor": "Foxit Software Inc.", "versions": [{"status": "affected", "version": "Versions 2026.2 and earlier"}]}], "source": "14984358-7092-470d-8f34-ade47a7658a2"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "matchCriteriaId": "F56A28CE-B170-4EF6-9252-DAAAE95C8EFC", "versionEndIncluding": "13.2.5.63482", "vulnerable": true}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACB35909-C2E9-45E0-A63D-A80DCD8ECC24", "versionEndIncluding": "14.0.7.33751", "versionStartIncluding": "14.0.0.33046", "vulnerable": true}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "matchCriteriaId": "0C75FEE6-54F3-49C6-BAEA-A09D23BE5D64", "versionEndIncluding": "2023.3.0.23028", "versionStartIncluding": "2023.1.0.15510", "vulnerable": true}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "matchCriteriaId": "2C06BC41-9831-4AE3-B10B-3FC313D01580", "versionEndIncluding": "2024.4.1.27687", "versionStartIncluding": "2024.1.0.23997", "vulnerable": true}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "matchCriteriaId": "AD0AAFC0-5B9B-4A11-8967-4699792850F1", "versionEndIncluding": "2025.3.0.35737", "versionStartIncluding": "2025.1.0.27937", "vulnerable": true}, {"criteria": "cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*", "matchCriteriaId": "757FC908-7C20-4D94-B5E4-83590D451EA1", "versionEndIncluding": "2026.2.0.39747", "versionStartIncluding": "2026.1.0.36452", "vulnerable": true}, {"criteria": "cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*", "matchCriteriaId": "379C8399-B43C-47AE-BA7B-0FAC7682BF7B", "versionEndIncluding": "2026.2.0.39747", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution."}], "id": "CVE-2026-91795", "lastModified": "2026-10-08T13:48:36.860", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "14984358-7092-470d-8f34-ade47a7658a2", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-91795", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-23T14:46:41.289496Z", "version": "2.0.3"}}]}, "published": "2026-09-23T08:17:11.453", "references": [{"source": "14984358-7092-470d-8f34-ade47a7658a2", "tags": ["Vendor Advisory"], "url": "https://www.foxit.com/support/security-bulletins.html"}], "sourceIdentifier": "14984358-7092-470d-8f34-ade47a7658a2", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-822"}], "source": "14984358-7092-470d-8f34-ade47a7658a2", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["windows"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2]"}}, {"platform": ["windows"], "status": "affected", "versions": {"scheme": "semver", "value": "[0,14.0.7]"}}, {"platform": ["windows"], "status": "affected", "versions": {"scheme": "semver", "value": "[0,13.2.6]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 98.0, "source": "matching"}]}, "original": {"product": "Foxit PDF Editor", "source": "cna", "vendor": "Foxit Software Inc."}, "product": "foxit_pdf_editor", "vendor": "foxitsoftware"}, {"configurations": [{"platform": ["windows"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2]"}}], "enrichment": {"confidence": 91.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 91.0, "source": "matching"}]}, "original": {"product": "Foxit PDF Reader", "source": "cna", "vendor": "Foxit Software Inc."}, "product": "foxit_reader", "vendor": "foxitsoftware"}], "created": "2026-09-23T15:00:06.839068+00:00", "updated": "2026-09-24T09:11:59.016992+00:00", "vendors": ["foxitsoftware", "foxitsoftware$PRODUCT$foxit_pdf_editor", "foxitsoftware$PRODUCT$foxit_reader"]}