{"id":"CVE-2023-30087","aliases":["EUVD-2023-34520","GHSA-2f9m-8whp-5mwq","UBUNTU-CVE-2023-30087"],"status":"published","title":"Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a...","description":"Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_mk_string function in mjs.c.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00255,"percentile":0.17199,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-05-09T00:00:00Z","modified":"2026-10-28T02:31:03Z","affected":[{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"openvlbi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20211207.ae3a06a-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"openvlbi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.23.5-2","3.0.2-2","3.0.2-2.1build1","3.0.2-2.1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"openvlbi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.2-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"openvlbi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.2-3"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"openvlbi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.2-3"]}],"products":[{"vendor":"cesanta","product":"mjs"}],"references":[{"url":"https://github.com/cesanta/mjs/issues/244","tags":["x_transferred","Exploit","Issue Tracking","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30087","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2f9m-8whp-5mwq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30087.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-30087","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-30087","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-30087","description":"Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_mk_string function in mjs.c.","status":"published","published":"2023-05-09T00:00:00Z","modified":"2025-01-29T14:37:49.726Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:22.309324Z"}],"euvd":[{"id":"EUVD-2023-34520","description":"Buffer Overflow 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