{"id":"CVE-2023-4537","aliases":["EUVD-2023-54392","GHSA-58qw-vfcj-x2hg"],"status":"published","title":"Protocol Downgrade in Comarch ERP XL","description":"Comarch ERP XL client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification.\n\nThis issue affects ERP XL: from 2020.2.2 through 2023.2.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00611,"percentile":0.4963,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-311","CWE-755"],"published":"2024-02-15T08:27:07Z","modified":"2026-06-17T06:38:02Z","products":[{"vendor":"comarch","product":"erp xl"},{"vendor":"comarch","product":"erp_xl"}],"references":[{"url":"https://cert.pl/en/posts/2024/02/CVE-2023-4537/","tags":["third-party-advisory","x_transferred","Third Party Advisory"]},{"url":"https://cert.pl/posts/2024/02/CVE-2023-4537/","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://cert.pl/posts/2023/02/CVE-2023-4537/","tags":["third-party-advisory","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4537"},{"url":"https://cert.pl/en/posts/2024/02/CVE-2023-4537"},{"url":"https://cert.pl/posts/2023/02/CVE-2023-4537"},{"url":"https://cert.pl/posts/2024/02/CVE-2023-4537"},{"url":"https://github.com/advisories/GHSA-58qw-vfcj-x2hg"}],"sources":{"cve":[{"id":"CVE-2023-4537","title":"Protocol Downgrade in Comarch ERP XL","description":"Comarch ERP XL client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification.\n\nThis issue affects ERP XL: from 2020.2.2 through 2023.2.","status":"published","published":"2024-02-15T08:27:07.579Z","modified":"2024-10-10T15:35:58.278Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:35:30.474787Z"}],"euvd":[{"id":"EUVD-2023-54392","description":"Comarch ERP XL client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification.\n\nThis issue affects ERP XL: from 2020.2.2 through 2023.2.","status":"published","published":"2024-02-15T08:27:07Z","modified":"2024-10-10T15:35:58Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T00:27:41.012246Z"}],"ghsa":[{"id":"GHSA-58qw-vfcj-x2hg","title":"Comarch ERP XL client is vulnerable to MS SQL protocol downgrade request from a server side, what...","description":"Comarch ERP XL client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification.\n\nThis issue affects ERP XL: from 2020.2.2 through 2023.2.","status":"published","published":"2024-02-15T09:30:36Z","modified":"2026-03-24T05:03:57Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-311","CWE-755"],"updated_at":"2026-11-02T15:06:48.910736Z"}],"nvd":[{"id":"CVE-2023-4537","description":"Comarch ERP XL client is vulnerable to MS SQL protocol downgrade request from a server side, what could lead to an unencrypted communication vulnerable to data interception and modification.\n\nThis issue affects ERP XL: from 2020.2.2 through 2023.2.","status":"published","published":"2024-02-15T09:15:33.273Z","modified":"2026-06-17T06:38:02.43Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:09:07.077422Z"}]}}