{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123976", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-06T17:54:14.114Z", "datePublished": "2026-11-06T17:58:31.600Z", "dateUpdated": "2026-11-06T17:58:31.600Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-06T17:58:31.600Z"}, "datePublic": "2026-11-05T00:00:00.000Z", "title": "EDFbrowser before 2.16 Out-of-Bounds Write via check_edf_file() Annotation Signals", "descriptions": [{"lang": "en", "value": "EDFbrowser before 2.16 contains an out-of-bounds write vulnerability in check_edf_file() that allows attackers to overflow the 256-element annot_ch array by supplying excessive annotation signals. Attackers can craft an EDF+ or BDF+ file with more than 256 annotation signals to overwrite edfhdrblock members, including the signal parameter pointer, crashing the application when opened."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Write", "cweId": "CWE-787", "type": "CWE"}]}], "affected": [{"vendor": "Teunis van Beelen", "product": "EDFbrowser", "defaultStatus": "unaffected", "versions": [{"version": "0", "lessThan": "2.16", "status": "affected", "versionType": "custom"}], "packageURL": "pkg:gitlab/teuniz/edfbrowser", "repo": "https://gitlab.com/Teuniz/EDFbrowser"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://gitlab.com/Teuniz/EDFbrowser/-/commit/f64cec4a22af34adb7bbdf5fec12cb3a880ddc5a", "tags": ["patch"]}, {"url": "https://gitlab.com/Teuniz/EDFbrowser/-/tags/v2.16", "tags": ["release-notes"]}, {"url": "https://gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/check_edf_file.c#L686-L708", "tags": ["technical-description"]}, {"url": "https://gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/global.h#L250", "tags": ["technical-description"]}, {"url": "https://gitlab.com/Teuniz/EDFbrowser", "tags": ["product"]}, {"name": "VulnCheck Advisory: EDFbrowser before 2.16 Out-of-Bounds Write via check_edf_file() Annotation Signals", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/edfbrowser-before-2.16-out-of-bounds-write-via-check-edf-file-annotation-signals"}], "credits": [{"lang": "en", "value": "Deus Rex", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:gitlab/teuniz/edfbrowser", "product": "EDFbrowser", "repo": "https://gitlab.com/Teuniz/EDFbrowser", "vendor": "Teunis van Beelen", "versions": [{"lessThan": "2.16", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "EDFbrowser before 2.16 contains an out-of-bounds write vulnerability in check_edf_file() that allows attackers to overflow the 256-element annot_ch array by supplying excessive annotation signals. Attackers can craft an EDF+ or BDF+ file with more than 256 annotation signals to overwrite edfhdrblock members, including the signal parameter pointer, crashing the application when opened."}], "id": "CVE-2026-123976", "lastModified": "2026-11-06T18:18:05.877", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.8, "baseSeverity": "MEDIUM", "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:N/VI:N/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": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-11-06T18:18:05.877", "references": [{"source": "[email protected]", "url": "https://gitlab.com/Teuniz/EDFbrowser"}, {"source": "[email protected]", "url": "https://gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/check_edf_file.c#L686-L708"}, {"source": "[email protected]", "url": "https://gitlab.com/Teuniz/EDFbrowser/-/blob/v2.15/global.h#L250"}, {"source": "[email protected]", "url": "https://gitlab.com/Teuniz/EDFbrowser/-/commit/f64cec4a22af34adb7bbdf5fec12cb3a880ddc5a"}, {"source": "[email protected]", "url": "https://gitlab.com/Teuniz/EDFbrowser/-/tags/v2.16"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/edfbrowser-before-2.16-out-of-bounds-write-via-check-edf-file-annotation-signals"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "[email protected]", "type": "Primary"}]}

{}