{"id":"CVE-2022-43972","aliases":["EUVD-2022-46940","GHSA-2p3f-3cj6-r8vv"],"status":"published","title":"Null pointer dereference in Linksys WRT54GL","description":"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01414,"percentile":0.72951,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2023-01-09T00:00:00Z","modified":"2026-06-17T05:07:34Z","products":[{"vendor":"linksys","product":"wrt54gl wireless-g broadband router"},{"vendor":"linksys","product":"wrt54gl_firmware"}],"references":[{"url":"https://youtu.be/73-1lhvJPNg","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://youtu.be/TeWAmZaKQ_w","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://youtu.be/RfWVYCUBNZ0","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-43972"},{"url":"https://github.com/advisories/GHSA-2p3f-3cj6-r8vv"}],"sources":{"cve":[{"id":"CVE-2022-43972","title":"Null pointer dereference in Linksys WRT54GL","description":"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.","status":"published","published":"2023-01-09T00:00:00Z","modified":"2025-04-09T14:22:24.605Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:34:25.308772Z"}],"euvd":[{"id":"EUVD-2022-46940","description":"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.","status":"published","published":"2023-01-09T00:00:00Z","modified":"2025-04-09T14:22:24Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:52:38.716764Z"}],"ghsa":[{"id":"GHSA-2p3f-3cj6-r8vv","title":"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router...","description":"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.","status":"published","published":"2023-01-09T21:30:20Z","modified":"2023-01-29T05:03:13Z","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-476"],"updated_at":"2026-11-02T14:45:16.618773Z"}],"nvd":[{"id":"CVE-2022-43972","description":"A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware \u003c= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.","status":"published","published":"2023-01-09T21:15:10.92Z","modified":"2026-06-17T05:07:34.24Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"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-476"],"updated_at":"2026-11-02T14:07:35.157734Z"}]}}