{"id":"CVE-2023-3959","aliases":["EUVD-2023-44584","GHSA-xw58-crph-crhm"],"status":"published","title":"Zavio IP Camera Stack-Based Buffer Overflow","description":"Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220,\n CB6231, B8520, B8220, and CD321 \n\nIP Cameras\n\nwith firmware version M2.1.6.05 are \nvulnerable to multiple instances of stack-based overflows. While \nprocessing XML elements from incoming network requests, the product does\n not sufficiently check or validate allocated buffer size. This may lead\n to remote code execution.","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":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.48765,"percentile":0.98885,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2023-11-08T23:02:55Z","modified":"2026-06-17T06:15:29Z","products":[{"vendor":"zavio","product":"b8220_firmware"},{"vendor":"zavio","product":"b8520_firmware"},{"vendor":"zavio","product":"cb3211_firmware"},{"vendor":"zavio","product":"cb3212_firmware"},{"vendor":"zavio","product":"cb5220_firmware"},{"vendor":"zavio","product":"cb6231_firmware"},{"vendor":"zavio","product":"cd321_firmware"},{"vendor":"zavio","product":"cf7201_firmware"},{"vendor":"zavio","product":"cf7300_firmware"},{"vendor":"zavio","product":"cf7500_firmware"},{"vendor":"zavio","product":"cf7501_firmware"},{"vendor":"zavio","product":"ip camera b8220"},{"vendor":"zavio","product":"ip camera b8520"},{"vendor":"zavio","product":"ip camera cb3211"},{"vendor":"zavio","product":"ip camera cb3212"},{"vendor":"zavio","product":"ip camera cb5220"},{"vendor":"zavio","product":"ip camera cb6231"},{"vendor":"zavio","product":"ip camera cd321"},{"vendor":"zavio","product":"ip camera cf7201"},{"vendor":"zavio","product":"ip camera cf7300"},{"vendor":"zavio","product":"ip camera cf7500"},{"vendor":"zavio","product":"ip camera cf7501"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-23-304-03","tags":["x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3959"},{"url":"https://github.com/advisories/GHSA-xw58-crph-crhm"}],"sources":{"cve":[{"id":"CVE-2023-3959","title":"Zavio IP Camera Stack-Based Buffer Overflow","description":"Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220,\n CB6231, B8520, B8220, and CD321 \n\nIP Cameras\n\nwith firmware version M2.1.6.05 are \nvulnerable to multiple instances of stack-based overflows. While \nprocessing XML elements from incoming network requests, the product does\n not sufficiently check or validate allocated buffer size. This may lead\n to remote code execution.\n\n","status":"published","published":"2023-11-08T23:02:55.581Z","modified":"2025-01-16T21:25:58.442Z","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":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:24.360381Z"}],"euvd":[{"id":"EUVD-2023-44584","description":"Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220,\n CB6231, B8520, B8220, and CD321 \n\nIP Cameras\n\nwith firmware version M2.1.6.05 are \nvulnerable to multiple instances of stack-based overflows. While \nprocessing XML elements from incoming network requests, the product does\n not sufficiently check or validate allocated buffer size. This may lead\n to remote code execution.\n\n","status":"published","published":"2023-11-08T23:02:55Z","modified":"2025-01-16T21:25:58Z","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":"2026-11-03T00:04:18.077485Z"}],"ghsa":[{"id":"GHSA-xw58-crph-crhm","title":"Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220,\n CB6231, B8520, B8220, and CD321 \n...","description":"Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220,\n CB6231, B8520, B8220, and CD321 \n\nIP Cameras\n\nwith firmware version M2.1.6.05 are \nvulnerable to multiple instances of stack-based overflows. While \nprocessing XML elements from incoming network requests, the product does\n not sufficiently check or validate allocated buffer size. This may lead\n to remote code execution.\n\n","status":"published","published":"2023-11-09T00:33:56Z","modified":"2023-11-24T05:05:36Z","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"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:55:05.78804Z"}],"nvd":[{"id":"CVE-2023-3959","description":"Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220,\n CB6231, B8520, B8220, and CD321 \n\nIP Cameras\n\nwith firmware version M2.1.6.05 are \nvulnerable to multiple instances of stack-based overflows. While \nprocessing XML elements from incoming network requests, the product does\n not sufficiently check or validate allocated buffer size. This may lead\n to remote code execution.\n\n","status":"published","published":"2023-11-08T23:15:08.523Z","modified":"2026-06-17T06:15:29.32Z","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":"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-121","CWE-787"],"updated_at":"2026-11-02T14:08:43.669554Z"}]}}