{"id":"CVE-2023-46894","aliases":["EUVD-2023-0073","GHSA-3f38-96qm-r3fw","PYSEC-2023-234","UBUNTU-CVE-2023-46894"],"status":"published","title":"esptool allows attackers to view sensitive information via weak cryptographic algorithm","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00576,"percentile":0.4795,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2023-11-09T00:00:00Z","modified":"2026-10-28T02:30:53Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.6.2"}]}]},{"source":"osv","ecosystem":"PyPI","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.6.2"}]}],"versions":["1.0.0","1.0.1","1.1","1.2","1.2.1","1.3","2.0","2.0.1","2.1","2.2","2.2.1","2.3","2.3.1","2.4.0","2.4.1","2.5.0","2.5.1","2.6","2.7","2.8","3.0","3.1","3.2","3.3","3.3.1","3.3.2","3.3.3","4.0","4.0.1","4.1","4.2","4.2.1","4.3","4.4","4.5","4.5.1","4.5.dev0","4.5.dev1","4.5.dev2","4.5.dev3","4.6","4.6.1","4.6.2","4.6.dev1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.6-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.6-1","2.1+dfsg1-1","2.1+dfsg1-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6+dfsg-1","2.8+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.8+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2+dfsg-0.1","4.7.0+dfsg-0.1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.0+dfsg-0.1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.0+dfsg-0.2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"esptool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.0+dfsg-0.1","4.7.0+dfsg-0.2"]}],"products":[{"vendor":"espressif","product":"esptool"}],"references":[{"url":"https://github.com/espressif/esptool/issues/926","tags":["x_transferred","Exploit","report","web","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46894","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/esptool/PYSEC-2023-234.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-3f38-96qm-r3fw","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46894.json","tags":["advisory"]},{"url":"https://github.com/espressif/esptool","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2023-46894","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-46894","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-46894","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T00:00:00Z","modified":"2024-09-04T14:57:32.185Z","updated_at":"2026-11-02T14:35:23.309349Z"}],"euvd":[{"id":"EUVD-2023-0073","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T00:00:00Z","modified":"2024-09-04T14:57:32Z","updated_at":"2026-11-03T00:56:04.589959Z"}],"ghsa":[{"id":"GHSA-3f38-96qm-r3fw","title":"esptool allows attackers to view sensitive information via weak cryptographic algorithm","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T18:34:55Z","modified":"2023-11-15T18:33:29Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:37:22.040291Z"}],"nvd":[{"id":"CVE-2023-46894","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T16:15:34.887Z","modified":"2026-06-17T06:31:49.007Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:08:43.669554Z"}],"osv":[{"id":"GHSA-3f38-96qm-r3fw","title":"esptool allows attackers to view sensitive information via weak cryptographic algorithm","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T18:34:55Z","modified":"2026-06-24T06:11:07.497811351Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T15:46:35.747385Z"},{"id":"PYSEC-2023-234","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"withdrawn","published":"2023-11-09T16:15:00Z","modified":"2026-06-29T07:30:05.08411133Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:52:53.837392Z"},{"id":"UBUNTU-CVE-2023-46894","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T16:15:00Z","modified":"2026-10-17T12:57:21.476237851Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T16:54:23.935133Z"},{"id":"CVE-2023-46894","description":"An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.","status":"published","published":"2023-11-09T00:00:00Z","modified":"2026-10-28T02:30:53.05946657Z","updated_at":"2026-11-02T15:44:34.287121Z"}]}}