CVE-2026-120436

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120436", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-02T12:42:14.231Z", "datePublished": "2026-11-02T14:28:59.204Z", "dateUpdated": "2026-11-02T17:34:08.399Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-02T14:28:59.204Z"}, "datePublic": "2026-09-08T00:00:00.000Z", "title": "Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnm", "descriptions": [{"lang": "en", "value": "Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Integer Overflow or Wraparound", "cweId": "CWE-190", "type": "CWE"}]}], "affected": [{"vendor": "Netpbm", "product": "Netpbm", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThan": "10.86.51", "status": "affected", "versionType": "custom"}, {"version": "11.0", "lessThan": "11.02.30", "status": "affected", "versionType": "custom"}, {"version": "11.03", "lessThan": "11.15.08", "status": "affected", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.86.51"}, {"vulnerable": true, "criteria": "cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.0", "versionEndExcluding": "11.02.30"}, {"vulnerable": true, "criteria": "cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.03", "versionEndExcluding": "11.15.08"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.5, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"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"}}], "references": [{"url": "https://sourceforge.net/p/netpbm/code/5324/", "tags": ["patch"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY", "tags": ["release-notes"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY", "tags": ["release-notes"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY", "tags": ["release-notes"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnm", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm"}], "credits": [{"lang": "en", "value": "Tristan Madani (Talence Security)", "type": "finder"}, {"lang": "en", "value": "Bryan Henderson", "type": "remediation developer"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-02T17:10:22.514852Z", "id": "CVE-2026-120436", "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": "2026-11-02T17:34:08.399Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-120436", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-11-02T17:10:22.514852Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-02T17:10:26.243Z"}}], "cna": {"title": "Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnm", "credits": [{"lang": "en", "type": "finder", "value": "Tristan Madani (Talence Security)"}, {"lang": "en", "type": "remediation developer", "value": "Bryan Henderson"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 8.5, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}, {"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"}}], "affected": [{"vendor": "Netpbm", "product": "Netpbm", "versions": [{"status": "affected", "version": "0", "lessThan": "10.86.51", "versionType": "custom"}, {"status": "affected", "version": "11.0", "lessThan": "11.02.30", "versionType": "custom"}, {"status": "affected", "version": "11.03", "lessThan": "11.15.08", "versionType": "custom"}], "defaultStatus": "unaffected"}], "datePublic": "2026-09-08T00:00:00.000Z", "references": [{"url": "https://sourceforge.net/p/netpbm/code/5324/", "tags": ["patch"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY", "tags": ["release-notes"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY", "tags": ["release-notes"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY", "tags": ["release-notes"]}, {"url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c", "tags": ["technical-description"]}, {"url": "https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm", "name": "VulnCheck Advisory: Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnm", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "Integer Overflow or Wraparound"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "10.86.51"}, {"criteria": "cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "11.02.30", "versionStartIncluding": "11.0"}, {"criteria": "cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "11.15.08", "versionStartIncluding": "11.03"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-02T14:28:59.204Z"}}}, "cveMetadata": {"cveId": "CVE-2026-120436", "state": "PUBLISHED", "dateUpdated": "2026-11-02T17:34:08.399Z", "dateReserved": "2026-11-02T12:42:14.231Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-11-02T14:28:59.204Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Netpbm", "vendor": "Netpbm", "versions": [{"lessThan": "10.86.51", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "11.02.30", "status": "affected", "version": "11.0", "versionType": "custom"}, {"lessThan": "11.15.08", "status": "affected", "version": "11.03", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution."}], "id": "CVE-2026-120436", "lastModified": "2026-11-02T19:14:53.030", "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": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-120436", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-02T17:10:22.514852Z", "version": "2.0.3"}}]}, "published": "2026-11-02T15:17:25.440", "references": [{"source": "disclosure@vulncheck.com", "url": "https://sourceforge.net/p/netpbm/code/5324/"}, {"source": "disclosure@vulncheck.com", "url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c"}, {"source": "disclosure@vulncheck.com", "url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY"}, {"source": "disclosure@vulncheck.com", "url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY"}, {"source": "disclosure@vulncheck.com", "url": "https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{"bugzilla": {"description": "netpbm: netpbm: Arbitrary code execution via integer overflow in jbigtopnm", "id": "2565322", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2565322"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in Netpbm's jbigtopnm conversion utility. An integer overflow occurs when calculating output buffer dimensions for multi-plane JBIG (Joint Bi-level Image Experts Group) images with large header sizes, resulting in an undersized memory allocation. By convincing a user to process a specially crafted JBIG file, an attacker could trigger a heap-based buffer overflow, potentially leading to arbitrary code execution or a Denial of Service (DoS) crash."], "name": "CVE-2026-120436", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "netpbm", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "netpbm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "netpbm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "netpbm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "netpbm", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-11-02T14:28:59Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120436\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120436\nhttps://sourceforge.net/p/netpbm/code/5324/\nhttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c\nhttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY\nhttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY\nhttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY\nhttps://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,10.86.51)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[11.0,11.02.30)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[11.03,11.15.08)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Netpbm", "source": "cna", "vendor": "Netpbm"}, "product": "netpbm", "vendor": "netpbm"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "netpbm", "vendor": "netpbm_project"}], "created": "2026-11-02T15:30:14.816951+00:00", "updated": "2026-11-03T01:45:09.761974+00:00", "vendors": ["netpbm", "netpbm$PRODUCT$netpbm", "netpbm_project", "netpbm_project$PRODUCT$netpbm"]}