CVE-2026-75538

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Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.</p>\n<p>This issue affects OTP from OTP&nbsp;17.0 before OTP&nbsp;27.3.4.17, OTP&nbsp;28.5.0.6, and OTP&nbsp;29.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. Whether OTP before OTP&nbsp;17.0, corresponding to erts before 6.0, is affected is unknown.</p>"}, {"base64": false, "type": "text/markdown", "value": "An attacker that connects to an open Erlang TCP port that uses the inet driver with `{packet,4}` mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB.\n\nThis would easily trash the allocated block's allocator metadata footer, and the next block, if any, and most likely cause the BEAM VM to crash. Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.17, OTP\u00a028.5.0.6, and OTP\u00a029.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. Whether OTP before OTP\u00a017.0, corresponding to erts before 6.0, is affected is unknown."}], "value": "An attacker that connects to an open Erlang TCP port that uses the inet driver with {packet,4} mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB.\n\nThis would easily trash the allocated block's allocator metadata footer, and the next block, if any, and most likely cause the BEAM VM to crash. Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.17, OTP\u00a028.5.0.6, and OTP\u00a029.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. 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Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.17, OTP\u00a028.5.0.6, and OTP\u00a029.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. Whether OTP before OTP\u00a017.0, corresponding to erts before 6.0, is affected is unknown.", "supportingMedia": [{"type": "text/html", "value": "<p>An attacker that connects to an open Erlang TCP port that uses the inet driver with <code>{packet,4}</code> mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB.</p>\n<p>This would easily trash the allocated block's allocator metadata footer, and the next block, if any, and most likely cause the BEAM VM to crash. Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.</p>\n<p>This issue affects OTP from OTP&nbsp;17.0 before OTP&nbsp;27.3.4.17, OTP&nbsp;28.5.0.6, and OTP&nbsp;29.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. Whether OTP before OTP&nbsp;17.0, corresponding to erts before 6.0, is affected is unknown.</p>", "base64": false}, {"type": "text/markdown", "value": "An attacker that connects to an open Erlang TCP port that uses the inet driver with `{packet,4}` mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB.\n\nThis would easily trash the allocated block's allocator metadata footer, and the next block, if any, and most likely cause the BEAM VM to crash. Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.17, OTP\u00a028.5.0.6, and OTP\u00a029.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. 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{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "packageName": "otp", "packageURL": "pkg:software-id/erlang.org/otp", "product": "OTP", "vendor": "Erlang", "versions": [{"changes": [{"at": "27.3.4.17", "status": "unaffected"}, {"at": "28.5.0.6", "status": "unaffected"}, {"at": "29.0.6", "status": "unaffected"}], "lessThan": "*", "status": "affected", "version": "17.0", "versionType": "otp"}]}, {"cpes": ["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "packageName": "erts", "packageURL": "pkg:otp/erts?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git", "product": "OTP", "repo": "https://github.com/erlang/otp", "vendor": "Erlang", "versions": [{"changes": [{"at": "15.2.7.13", "status": "unaffected"}, {"at": "16.4.0.6", "status": "unaffected"}, {"at": "17.0.6", "status": "unaffected"}], "lessThan": "*", "status": "affected", "version": "6.0", "versionType": "otp"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "packageName": "erlang/otp", "packageURL": "pkg:github/erlang/otp", "product": "OTP", "repo": "https://github.com/erlang/otp", "vendor": "Erlang", "versions": [{"lessThan": "08e8efdba8500d2d6f54c6b1de1492b228017c9b", "status": "affected", "version": "84adefa331c4159d432d22840663c38f155cd4c1", "versionType": "git"}, {"lessThan": "*", "status": "unaffected", "version": "08e8efdba8500d2d6f54c6b1de1492b228017c9b", "versionType": "git"}]}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An attacker that connects to an open Erlang TCP port that uses the inet driver with {packet,4} mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB.\n\nThis would easily trash the allocated block's allocator metadata footer, and the next block, if any, and most likely cause the BEAM VM to crash. Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible.\n\nThis issue affects OTP from OTP\u00a017.0 before OTP\u00a027.3.4.17, OTP\u00a028.5.0.6, and OTP\u00a029.0.6, corresponding to erts from 6.0 before 15.2.7.13, 16.4.0.6, and 17.0.6. Whether OTP before OTP\u00a017.0, corresponding to erts before 6.0, is affected is unknown."}], "id": "CVE-2026-75538", "lastModified": "2026-11-11T14:17:47.070", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.2, "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": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/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": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75538", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-01T15:58:11.549801Z", "version": "2.0.3"}}]}, "published": "2026-09-01T15:17:26.853", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://cna.erlef.org/cves/CVE-2026-75538.html"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/erlang/otp/commit/08e8efdba8500d2d6f54c6b1de1492b228017c9b"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/erlang/otp/security/advisories/GHSA-8m6r-2pj2-25pm"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://osv.dev/vulnerability/EEF-CVE-2026-75538"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}, {"lang": "en", "value": "CWE-190"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17.0,27.3.4.17)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[28.0,28.5.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[29.0,29.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.0,15.2.7.13)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16.0,16.4.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17.0,17.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84adefa331c4159d432d22840663c38f155cd4c1,08e8efdba8500d2d6f54c6b1de1492b228017c9b)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "erlang/otp", "vendor": "erlang"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17.0,27.3.4.17)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[28.0,28.5.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[29.0,29.0.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OTP", "source": "cna", "vendor": "Erlang"}, "product": "otp", "vendor": "erlang"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.0,15.2.7.13)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16.0,16.4.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17.0,17.0.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OTP", "source": "cna", "vendor": "Erlang"}, "product": "otp", "vendor": "erlang"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84adefa331c4159d432d22840663c38f155cd4c1,08e8efdba8500d2d6f54c6b1de1492b228017c9b)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OTP", "source": "cna", "vendor": "Erlang"}, "product": "otp", "vendor": "erlang"}], "created": "2026-09-01T17:00:17.930631+00:00", "updated": "2026-09-01T18:15:04.091268+00:00", "vendors": ["erlang", "erlang$PRODUCT$erlang/otp", "erlang$PRODUCT$otp"]}