{"id":"CVE-2023-0656","aliases":["EUVD-2023-12690","GHSA-w97f-6vh7-h454"],"status":"published","title":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated...","description":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.41319,"percentile":0.9868,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2023-03-02T00:00:00Z","modified":"2026-11-09T15:32:43Z","exploits":[{"source":"pocgithub","id":"BishopFox/CVE-2022-22274_CVE-2023-0656","title":"BishopFox/CVE-2022-22274_CVE-2023-0656","date":"2024-01-12","url":"https://github.com/BishopFox/CVE-2022-22274_CVE-2023-0656"}],"products":[{"vendor":"sonicwall","product":"sonicos"}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0004","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0656"},{"url":"https://github.com/advisories/GHSA-w97f-6vh7-h454"}],"sources":{"cve":[{"id":"CVE-2023-0656","description":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.","status":"published","published":"2023-03-02T00:00:00Z","modified":"2025-03-07T17:28:09.794Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:35.256261Z"}],"euvd":[{"id":"EUVD-2023-12690","description":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.","status":"published","published":"2023-03-02T00:00:00Z","modified":"2025-03-07T17:28:09Z","cvss":[{"version":"","score":0,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"none"}],"updated_at":"2026-11-02T20:53:10.661676Z"}],"ghsa":[{"id":"GHSA-w97f-6vh7-h454","title":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated...","description":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.","status":"published","published":"2023-03-03T00:30:45Z","modified":"2026-11-09T15:32:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-09T15:48:42.843855Z"}],"nvd":[{"id":"CVE-2023-0656","description":"A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.","status":"published","published":"2023-03-02T22:15:09.487Z","modified":"2026-11-09T14:43:41.437Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-09T16:14:49.14815Z"}]}}