{"id":"CVE-2023-49551","aliases":["EUVD-2023-53508","GHSA-7hrg-3c44-45cg","UBUNTU-CVE-2023-49551"],"status":"published","title":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the...","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00759,"percentile":0.55711,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2024-01-02T00:00:00Z","modified":"2026-10-28T02:31:09Z","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/257","tags":["x_transferred","Exploit","Issue Tracking","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49551","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7hrg-3c44-45cg"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49551.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-49551","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-49551","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-49551","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","status":"published","published":"2024-01-02T00:00:00Z","modified":"2024-09-06T17:57:41.504Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:35:12.998024Z"}],"euvd":[{"id":"EUVD-2023-53508","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","status":"published","published":"2024-01-02T00:00:00Z","modified":"2024-09-06T17:57:41Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:56:01.652315Z"}],"ghsa":[{"id":"GHSA-7hrg-3c44-45cg","title":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the...","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","status":"published","published":"2024-01-03T00:30:23Z","modified":"2024-09-06T21:32:27Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:58:11.86243Z"}],"nvd":[{"id":"CVE-2023-49551","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","status":"published","published":"2024-01-02T23:15:12.233Z","modified":"2026-06-17T06:36:07.853Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:08:59.830468Z"}],"osv":[{"id":"CVE-2023-49551","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","status":"published","published":"2024-01-02T00:00:00Z","modified":"2026-10-28T02:31:09.361353752Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:34.72355Z"},{"id":"UBUNTU-CVE-2023-49551","description":"An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_parse function in the msj.c file.","status":"published","published":"2024-01-02T23:15:00Z","modified":"2026-10-17T12:56:42.951121329Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:23.935133Z"}]}}