CVE-2026-49759

{"id": "CVE-2026-49759", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49759", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-10T16:18:27.945916Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.8, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "affectedData": [{"cpes": ["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"], "repo": "https://github.com/erlang/otp", "vendor": "Erlang", "modules": ["inet_drv"], "product": "OTP", "versions": [{"status": "affected", "changes": [{"at": "15.2.7.9", "status": "unaffected"}, {"at": "16.4.0.2", "status": "unaffected"}, {"at": "17.0.2", "status": "unaffected"}], "version": "6.0", "lessThan": "*", "versionType": "otp"}], "packageURL": "pkg:otp/erts?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git", "packageName": "erts", "programFiles": ["emulator/drivers/common/inet_drv.c"], "defaultStatus": "unknown", "programRoutines": [{"name": "sctp_parse_error_chunk"}]}, {"cpes": ["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"], "repo": "https://github.com/erlang/otp", "vendor": "Erlang", "modules": ["inet_drv"], "product": "OTP", "versions": [{"status": "affected", "changes": [{"at": "27.3.4.13", "status": "unaffected"}, {"at": "28.5.0.2", "status": "unaffected"}, {"at": "29.0.2", "status": "unaffected"}], "version": "17.0", "lessThan": "*", "versionType": "otp"}, {"status": "affected", "version": "84adefa331c4159d432d22840663c38f155cd4c1", "lessThan": "3983d495284331c121f600a80bac9fcf4e16381e", "versionType": "git"}], "packageURL": "pkg:github/erlang/otp", "packageName": "erlang/otp", "programFiles": ["erts/emulator/drivers/common/inet_drv.c"], "collectionURL": "https://github.com", "defaultStatus": "unknown", "programRoutines": [{"name": "sctp_parse_error_chunk"}]}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/a:redhat:openstack:16.2"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 16.2", "packageName": "erlang", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:17.1"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 17.1", "packageName": "erlang", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:18.0"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 18.0", "packageName": "erlang", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-06-10T16:17:12.797", "references": [{"url": "https://cna.erlef.org/cves/CVE-2026-49759.html", "tags": ["Third Party Advisory"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/erlang/otp/commit/3983d495284331c121f600a80bac9fcf4e16381e", "tags": ["Patch"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://github.com/erlang/otp/security/advisories/GHSA-6f4f-chj5-5g97", "tags": ["Vendor Advisory"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://osv.dev/vulnerability/EEF-CVE-2026-49759", "tags": ["Third Party Advisory"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://www.erlang.org/doc/system/versions.html#order-of-versions", "tags": ["Product"], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-49759", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487607", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49759.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "description": [{"lang": "en", "value": "CWE-121"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "Stack-based Buffer Overflow vulnerability in Erlang OTP erts (inet_drv) allows an unauthenticated remote attacker to crash the BEAM VM by sending a crafted SCTP ERROR chunk.\n\nThe sctp_parse_error_chunk function in erts/emulator/drivers/common/inet_drv.c parses SCTP ERROR chunks and writes cause codes into a fixed-size stack-allocated ErlDrvTermData spec[] array without checking bounds. A remote attacker who has established an SCTP association to a listening port can send a single crafted SCTP ERROR chunk containing enough cause codes to overflow the stack buffer, crashing the VM. The attacker can only write 16-bit values interleaved with a fixed tag, so the overflow does not provide a controlled return address, limiting exploitation to Denial of Service.\n\nA crafted SCTP ERROR chunk may also leak bits and pieces of Erlang VM memory into the received error packet observed by the Erlang process. Such data is already readable by the user running the Erlang VM, so the disclosure scope is limited.\n\nThis issue affects OTP from OTP 17.0 before OTP\u00a029.0.2, OTP\u00a028.5.0.2 and OTP\u00a027.3.4.13, corresponding to erts from 6.0 before 17.0.2, 16.4.0.2 and 15.2.7.9."}], "lastModified": "2026-07-24T15:17:31.763", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF42A5F2-4C27-43FE-B5FA-17A3422B9649", "versionEndExcluding": "27.3.4.13", "versionStartIncluding": "17.0"}, {"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "902ED4C3-B9DE-4ABC-9BEA-D23DA4F5D373", "versionEndExcluding": "28.5.0.2", "versionStartIncluding": "28.0"}, {"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4AB1573-4E81-4338-B65A-B3C94C7249FA", "versionEndExcluding": "29.0.2", "versionStartIncluding": "29.0"}, {"criteria": "cpe:2.3:a:erlang:erts:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EAB60C9A-F1B2-4377-8C9B-B8496D3D9B5C", "versionEndExcluding": "15.2.7.9", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:a:erlang:erts:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0778AFBA-F21F-4394-AA3A-38784D379BEB", "versionEndExcluding": "16.4.0.2", "versionStartIncluding": "16.0"}, {"criteria": "cpe:2.3:a:erlang:erts:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "05F0E6B1-0DA3-4A0B-8C89-8DFC55EC7C8B", "versionEndExcluding": "17.0.2", "versionStartIncluding": "17.0"}], "operator": "OR"}]}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}