{"id":"CVE-2023-43135","aliases":["EUVD-2023-47554","GHSA-hcgj-5w78-pg79"],"status":"published","title":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel...","description":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive information of the device without authentication, obtain user tokens, and ultimately log in to the device backend management.","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":"2026-11-11","score":0.00919,"percentile":0.60684,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2023-09-20T00:00:00Z","modified":"2026-06-17T06:25:10Z","products":[{"vendor":"tp-link","product":"er5120g"},{"vendor":"tp-link","product":"tl-er5120g_firmware"}],"references":[{"url":"https://github.com/7R4C4R/CVE/blob/main/TPLINK-TL-ER5120G/unauthorized%20access/Unauthorized%20Access%20Vulnerability.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43135"},{"url":"https://github.com/advisories/GHSA-hcgj-5w78-pg79"}],"sources":{"cve":[{"id":"CVE-2023-43135","description":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive information of the device without authentication, obtain user tokens, and ultimately log in to the device backend management.","status":"published","published":"2023-09-20T00:00:00Z","modified":"2024-09-25T14:14:11.051Z","updated_at":"2026-11-02T14:35:14.633899Z"}],"euvd":[{"id":"EUVD-2023-47554","description":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive information of the device without authentication, obtain user tokens, and ultimately log in to the device backend management.","status":"published","published":"2023-09-20T00:00:00Z","modified":"2024-09-25T14:14:11Z","updated_at":"2026-11-03T00:28:12.924195Z"}],"ghsa":[{"id":"GHSA-hcgj-5w78-pg79","title":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel...","description":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive information of the device without authentication, obtain user tokens, and ultimately log in to the device backend management.","status":"published","published":"2023-09-21T00:31:16Z","modified":"2024-04-04T07:47:17Z","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-862"],"updated_at":"2026-11-02T14:56:54.849147Z"}],"nvd":[{"id":"CVE-2023-43135","description":"There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive information of the device without authentication, obtain user tokens, and ultimately log in to the device backend management.","status":"published","published":"2023-09-20T22:15:13.64Z","modified":"2026-06-17T06:25:10.063Z","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"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:08:29.595868Z"}]}}