{"id":"CVE-2020-12637","aliases":["EUVD-2020-4938"],"status":"published","description":"Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00678,"percentile":0.52642,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2020-05-09T16:23:46Z","modified":"2026-10-24T10:30:52Z","products":[{"vendor":"zulipchat","product":"zulip_desktop"}],"references":[{"url":"https://blog.zulip.org/2020/05/06/zulip-desktop-5-2-0-security-release/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]}],"sources":{"cve":[{"id":"CVE-2020-12637","description":"Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.","status":"published","published":"2020-05-09T16:23:46Z","modified":"2024-08-04T12:04:22.311Z","updated_at":"2026-11-02T14:35:52.925152Z"}],"euvd":[{"id":"EUVD-2020-4938","description":"Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.","status":"published","published":"2020-05-09T16:23:46Z","modified":"2024-08-04T12:04:22Z","updated_at":"2026-11-03T03:07:39.896975Z"}],"nvd":[{"id":"CVE-2020-12637","description":"Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.","status":"published","published":"2020-05-09T17:15:11.613Z","modified":"2026-06-17T02:52:02.85Z","cvss":[{"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"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:06:00.784809Z"}],"osv":[{"id":"CVE-2020-12637","description":"Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.","status":"published","published":"2020-05-09T17:15:11.613Z","modified":"2026-10-24T10:30:52.216779043Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:44:14.034736Z"}]}}