{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-75615", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-17T23:49:03.451Z", "datePublished": "2026-11-05T16:49:20.422Z", "dateUpdated": "2026-11-05T16:49:20.422Z"}, "containers": {"cna": {"title": "ASN1SCC: Out-of-bounds read via unvalidated character index in ASN.1 string decoders", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-129", "lang": "en", "description": "CWE-129: Improper Validation of Array Index", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/esa/asn1scc/security/advisories/GHSA-234q-m7gr-pcf8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/esa/asn1scc/security/advisories/GHSA-234q-m7gr-pcf8"}, {"name": "https://github.com/esa/asn1scc/commit/fe6ab763bc60d8a2def4104c15414809b45fffd9", "tags": ["x_refsource_MISC"], "url": "https://github.com/esa/asn1scc/commit/fe6ab763bc60d8a2def4104c15414809b45fffd9"}, {"name": "https://github.com/esa/asn1scc/releases/tag/4.7.0.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/esa/asn1scc/releases/tag/4.7.0.1"}], "affected": [{"vendor": "esa", "product": "asn1scc", "versions": [{"version": "< 4.7.0.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-05T16:49:20.422Z"}, "descriptions": [{"lang": "en", "value": "ASN1SCC is an open source ASN.1 compiler for embedded systems. Prior to 4.7.0.1, the ACN runtime function Acn_Dec_String_CharIndex_private in asn1crt/asn1crt_encoding_acn.c and the generated uPER decoder InternalItem_string_with_alpha_decode in StgC/uper_c.stg do not validate a decoded character index before reading allowedCharSet. For string alphabets whose size is not a power of two, a crafted message can select an unused encoded index, read a small bounded window of adjacent static program constants, and return the byte as a successfully decoded character. The full 128-character IA5String alphabet is not affected. This issue is fixed in version 4.7.0.1."}], "source": {"advisory": "GHSA-234q-m7gr-pcf8", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "asn1scc", "vendor": "esa", "versions": [{"status": "affected", "version": "< 4.7.0.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ASN1SCC is an open source ASN.1 compiler for embedded systems. Prior to 4.7.0.1, the ACN runtime function Acn_Dec_String_CharIndex_private in asn1crt/asn1crt_encoding_acn.c and the generated uPER decoder InternalItem_string_with_alpha_decode in StgC/uper_c.stg do not validate a decoded character index before reading allowedCharSet. For string alphabets whose size is not a power of two, a crafted message can select an unused encoded index, read a small bounded window of adjacent static program constants, and return the byte as a successfully decoded character. The full 128-character IA5String alphabet is not affected. This issue is fixed in version 4.7.0.1."}], "id": "CVE-2026-75615", "lastModified": "2026-11-05T17:18:20.663", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-05T17:18:20.663", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/esa/asn1scc/commit/fe6ab763bc60d8a2def4104c15414809b45fffd9"}, {"source": "security-advisories@github.com", "url": "https://github.com/esa/asn1scc/releases/tag/4.7.0.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/esa/asn1scc/security/advisories/GHSA-234q-m7gr-pcf8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-129"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}