{"id":"CVE-2023-40706","aliases":["EUVD-2023-45261","GHSA-245g-9f78-5jxc"],"status":"published","title":"Improper Restriction of Excessive Authentication Attempts in OPTO 22 SNAP PAC S1 Built-in Web Server","description":"There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0067,"percentile":0.52263,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-307"],"published":"2023-08-24T16:03:36Z","modified":"2026-06-17T06:19:09Z","products":[{"vendor":"opto 22","product":"snap pac s1"},{"vendor":"opto22","product":"snap_pac_s1"},{"vendor":"opto22","product":"snap_pac_s1_firmware"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-02","tags":["x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40706"},{"url":"https://github.com/advisories/GHSA-245g-9f78-5jxc"}],"sources":{"cve":[{"id":"CVE-2023-40706","title":"Improper Restriction of Excessive Authentication Attempts in OPTO 22 SNAP PAC S1 Built-in Web Server","description":"There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.","status":"published","published":"2023-08-24T16:03:36.347Z","modified":"2024-10-02T20:24:51.286Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:35:21.971258Z"}],"euvd":[{"id":"EUVD-2023-45261","description":"There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.","status":"published","published":"2023-08-24T16:03:36Z","modified":"2024-10-02T20:24:51Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T00:27:55.180856Z"}],"ghsa":[{"id":"GHSA-245g-9f78-5jxc","title":"There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware...","description":"There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.","status":"published","published":"2023-08-24T18:30:51Z","modified":"2024-04-04T07:10:47Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:56:48.742308Z"}],"nvd":[{"id":"CVE-2023-40706","description":"There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.","status":"published","published":"2023-08-24T17:15:08.863Z","modified":"2026-06-17T06:19:09.837Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:08:25.025396Z"}]}}