{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-81977", "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538", "state": "PUBLISHED", "assignerShortName": "adobe", "dateReserved": "2026-08-27T21:20:45.364Z", "datePublished": "2026-09-08T20:31:01.262Z", "dateUpdated": "2026-09-11T21:29:09.423Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Adobe Acrobat", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "26.002.21900", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "26.002.21901", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Acrobat Reader", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "26.002.21900", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "26.002.21901", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Acrobat 2024", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "24.001.30383", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "24.001.30429", "versionType": "custom"}]}], "datePublic": "2026-09-08T17:00:00.000Z", "descriptions": [{"lang": "en", "value": "Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "environmentalScore": 5.5, "environmentalSeverity": "MEDIUM", "exploitCodeMaturity": "NOT_DEFINED", "integrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "LOW", "modifiedAttackVector": "LOCAL", "modifiedAvailabilityImpact": "NONE", "modifiedConfidentialityImpact": "HIGH", "modifiedIntegrityImpact": "NONE", "modifiedPrivilegesRequired": "NONE", "modifiedScope": "UNCHANGED", "modifiedUserInteraction": "REQUIRED", "privilegesRequired": "NONE", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "scope": "UNCHANGED", "temporalScore": 5.5, "temporalSeverity": "MEDIUM", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-191", "description": "Integer Underflow (Wrap or Wraparound) (CWE-191)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "078d4453-3bcd-4900-85e6-15281da43538", "shortName": "adobe", "dateUpdated": "2026-09-08T20:31:01.262Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://helpx.adobe.com/security/products/acrobat/apsb26-141.html"}], "source": {"discovery": "EXTERNAL"}, "title": "Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191)", "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-11T21:28:57.767374Z", "id": "CVE-2026-81977", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-09-11T21:29:09.423Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-81977", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-11T21:28:57.767374Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-11T21:29:04.714Z"}}], "cna": {"title": "Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191)", "source": {"discovery": "EXTERNAL"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "modifiedScope": "UNCHANGED", "temporalScore": 5.5, "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "temporalSeverity": "MEDIUM", "availabilityImpact": "NONE", "environmentalScore": 5.5, "privilegesRequired": "NONE", "exploitCodeMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "LOCAL", "confidentialityImpact": "HIGH", "environmentalSeverity": "MEDIUM", "availabilityRequirement": "NOT_DEFINED", "modifiedIntegrityImpact": "NONE", "modifiedUserInteraction": "REQUIRED", "modifiedAttackComplexity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAvailabilityImpact": "NONE", "modifiedPrivilegesRequired": "NONE", "modifiedConfidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Adobe", "product": "Adobe Acrobat", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "26.002.21900"}, {"status": "unaffected", "version": "26.002.21901", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Adobe", "product": "Acrobat Reader", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "26.002.21900"}, {"status": "unaffected", "version": "26.002.21901", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Adobe", "product": "Acrobat 2024", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "24.001.30383"}, {"status": "unaffected", "version": "24.001.30429", "versionType": "custom"}], "defaultStatus": "unaffected"}], "datePublic": "2026-09-08T17:00:00.000Z", "references": [{"url": "https://helpx.adobe.com/security/products/acrobat/apsb26-141.html", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-191", "description": "Integer Underflow (Wrap or Wraparound) (CWE-191)"}]}], "providerMetadata": {"orgId": "078d4453-3bcd-4900-85e6-15281da43538", "shortName": "adobe", "dateUpdated": "2026-09-08T20:31:01.262Z"}}}, "cveMetadata": {"cveId": "CVE-2026-81977", "state": "PUBLISHED", "dateUpdated": "2026-09-11T21:29:09.423Z", "dateReserved": "2026-08-27T21:20:45.364Z", "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538", "datePublished": "2026-09-08T20:31:01.262Z", "assignerShortName": "adobe"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Adobe Acrobat", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "26.002.21900", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "26.002.21901", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Acrobat Reader", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "26.002.21900", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "26.002.21901", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Acrobat 2024", "vendor": "Adobe", "versions": [{"lessThanOrEqual": "24.001.30383", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "24.001.30429", "versionType": "custom"}]}], "source": "psirt@adobe.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*", "matchCriteriaId": "A6C6B745-7D94-43D9-BD26-1B26EE34DED4", "versionEndExcluding": "24.001.30429", "versionStartIncluding": "24.001.20604", "vulnerable": true}, {"criteria": "cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*", "matchCriteriaId": "B9192F4D-A119-46C4-A167-F500ACB3ACAB", "versionEndExcluding": "26.002.21901", "versionStartIncluding": "15.008.20082", "vulnerable": true}, {"criteria": "cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*", "matchCriteriaId": "2FEAAE8A-F164-4DCA-8F08-9BC646831744", "versionEndExcluding": "26.002.21901", "versionStartIncluding": "15.008.20082", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E", "vulnerable": false}, {"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": "Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file."}], "id": "CVE-2026-81977", "lastModified": "2026-09-11T22:16:44.233", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "psirt@adobe.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-81977", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-11T21:28:57.767374Z", "version": "2.0.3"}}]}, "published": "2026-09-08T21:18:44.137", "references": [{"source": "psirt@adobe.com", "tags": ["Vendor Advisory"], "url": "https://helpx.adobe.com/security/products/acrobat/apsb26-141.html"}], "sourceIdentifier": "psirt@adobe.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-191"}], "source": "psirt@adobe.com", "type": "Secondary"}]}

{}