{"id":"CVE-2026-49759","revision":null,"records":[{"revision":"2d92415d3faa46a3b18a4f19a17538ec","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-49759","aliases":[],"title":"Stack buffer overflow in SCTP error cause parsing in inet_drv allows remote VM crash","description":"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\u00A017.0 before OTP\u00A027.3.4.13, OTP\u00A028.5.0.2, and OTP\u00A029.0.2, corresponding to erts from 6.0 before 15.2.7.9, 16.4.0.2, and 17.0.2. Whether OTP before OTP\u00A017.0, corresponding to erts before 6.0, is affected is unknown.","state":0,"publishedAt":"2026-06-10T14:35:38.838+00:00","modifiedAt":"2026-09-24T20:41:04.351+00:00","affected":[{"ecosystem":"Vendor product","name":"otp","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"cpes\": [\n \"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"\n ],\n \"defaultStatus\": \"unknown\",\n \"modules\": [\n \"inet_drv\"\n ],\n \"packageName\": \"otp\",\n \"packageURL\": \"pkg:software-id/erlang.org/otp\",\n \"product\": \"OTP\",\n \"programFiles\": [\n \"erts/emulator/drivers/common/inet_drv.c\"\n ],\n \"programRoutines\": [\n {\n \"name\": \"sctp_parse_error_chunk\"\n }\n ],\n \"vendor\": \"Erlang\",\n \"versions\": [\n {\n \"changes\": [\n {\n \"at\": \"27.3.4.13\",\n \"status\": \"unaffected\"\n },\n {\n \"at\": \"28.5.0.2\",\n \"status\": \"unaffected\"\n },\n {\n \"at\": \"29.0.2\",\n \"status\": \"unaffected\"\n }\n ],\n \"lessThan\": \"*\",\n \"status\": \"affected\",\n \"version\": \"17.0\",\n \"versionType\": \"otp\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"erts","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"cpes\": [\n \"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"\n ],\n \"defaultStatus\": \"unknown\",\n \"modules\": [\n \"inet_drv\"\n ],\n \"packageName\": \"erts\",\n \"packageURL\": \"pkg:otp/erts?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git\",\n \"product\": \"OTP\",\n \"programFiles\": [\n \"emulator/drivers/common/inet_drv.c\"\n ],\n \"programRoutines\": [\n {\n \"name\": \"sctp_parse_error_chunk\"\n }\n ],\n \"repo\": \"https://github.com/erlang/otp\",\n \"vendor\": \"Erlang\",\n \"versions\": [\n {\n \"changes\": [\n {\n \"at\": \"15.2.7.9\",\n \"status\": \"unaffected\"\n },\n {\n \"at\": \"16.4.0.2\",\n \"status\": \"unaffected\"\n },\n {\n \"at\": \"17.0.2\",\n \"status\": \"unaffected\"\n }\n ],\n \"lessThan\": \"*\",\n \"status\": \"affected\",\n \"version\": \"6.0\",\n \"versionType\": \"otp\"\n }\n ]\n }"},{"ecosystem":"https://github.com","name":"erlang/otp","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"collectionURL\": \"https://github.com\",\n \"cpes\": [\n \"cpe:2.3:a:erlang:erlang\\\\/otp:*:*:*:*:*:*:*:*\"\n ],\n \"defaultStatus\": \"unknown\",\n \"modules\": [\n \"inet_drv\"\n ],\n \"packageName\": \"erlang/otp\",\n \"packageURL\": \"pkg:github/erlang/otp\",\n \"product\": \"OTP\",\n \"programFiles\": [\n \"erts/emulator/drivers/common/inet_drv.c\"\n ],\n \"programRoutines\": [\n {\n \"name\": \"sctp_parse_error_chunk\"\n }\n ],\n \"repo\": \"https://github.com/erlang/otp\",\n \"vendor\": \"Erlang\",\n \"versions\": [\n {\n \"lessThan\": \"3983d495284331c121f600a80bac9fcf4e16381e\",\n \"status\": \"affected\",\n \"version\": \"84adefa331c4159d432d22840663c38f155cd4c1\",\n \"versionType\": \"git\"\n },\n {\n \"lessThan\": \"*\",\n \"status\": \"unaffected\",\n \"version\": \"3983d495284331c121f600a80bac9fcf4e16381e\",\n \"versionType\": \"git\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.8,"severity":"HIGH"}],"references":["https://github.com/erlang/otp/security/advisories/GHSA-6f4f-chj5-5g97","https://cna.erlef.org/cves/CVE-2026-49759.html","https://osv.dev/vulnerability/EEF-CVE-2026-49759","https://www.erlang.org/doc/system/versions.html#order-of-versions","https://github.com/erlang/otp/commit/3983d495284331c121f600a80bac9fcf4e16381e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-49759","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-49759","identifiers":["CVE-2026-49759"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T11:55:28.1860721+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T11:55:28.1860721+00:00","lastSuccessAt":"2026-11-12T11:55:28.4130785+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.4130791+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-4a4604796d7c0adea2c1c677026f25a1e039e4a95710b02ad846575329daaa79","complete":true,"records":424651,"lastAttemptAt":"2026-11-12T11:53:33.8199862+00:00","lastSuccessAt":"2026-11-12T11:53:33.7811873+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:53:33.8199862+00:00","snapshotPublishedAt":"2026-11-12T11:27:22+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-0580dcc98aaa46a8935f8ff576f25037","complete":true,"records":13764,"lastAttemptAt":"2026-11-12T11:56:20.2141865+00:00","lastSuccessAt":"2026-11-12T11:56:20.209+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:56:20.209+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13817,"expectedIdentifiers":13817,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T11:55:28.1860721+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-12T11:55:28.1860721+00:00","lastSuccessAt":"2026-11-12T11:55:28.4142299+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.4142304+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-ea8d0b9744d8407d9df5932458afeb6a","complete":false,"records":13764,"lastAttemptAt":"2026-11-12T11:55:53.6222651+00:00","lastSuccessAt":"2026-11-12T11:55:53.618+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:53.618+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13313,"expectedIdentifiers":13817,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-12T11:55:28.0344457+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.0344457+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-12T11:53:33.8856695+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:53:33.8856695+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-f46f74c6a30a9b6e4cfb481719c6d35521ebec2d53ebf163223d093ae587eb9d","complete":true,"records":3106,"lastAttemptAt":"2026-11-12T11:55:28.1484531+00:00","lastSuccessAt":"2026-11-12T09:55:31.1176285+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.1484531+00:00","snapshotPublishedAt":"2026-11-12T09:48:13+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-e59fd13399d7070c31f5f25102a6bcd537ccba91d773c8427fcf0d07ea0fe2d5","complete":true,"records":231700,"lastAttemptAt":"2026-11-12T11:55:27.8998515+00:00","lastSuccessAt":"2026-11-12T11:55:26.4268762+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:27.8998515+00:00","snapshotPublishedAt":"2026-11-12T11:33:13+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}