{"id":"CVE-2015-2055","aliases":["EUVD-2015-2168","GHSA-wpfg-h6pp-74wp"],"status":"published","title":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service...","description":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service via a long string in the oldpassword parameter.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03034,"percentile":0.87595,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2015-02-23T17:00:00Z","modified":"2026-06-17T00:23:31Z","exploits":[{"source":"exploitdb","id":"EDB-35859","title":"Zhone GPON 2520 R4.0.2.566b - Crash (PoC)","type":"dos","platform":"hardware","date":"2015-01-21","url":"https://www.exploit-db.com/exploits/35859"}],"products":[{"vendor":"zhone_technologies","product":"gpon_2520_firmware"}],"references":[{"url":"http://www.exploit-db.com/exploits/35859","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit"]},{"url":"http://www.securityfocus.com/bid/74876","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2055"},{"url":"https://github.com/advisories/GHSA-wpfg-h6pp-74wp"}],"sources":{"cve":[{"id":"CVE-2015-2055","description":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service via a long string in the oldpassword parameter.","status":"published","published":"2015-02-23T17:00:00Z","modified":"2024-08-06T05:02:43.342Z","updated_at":"2026-11-02T14:35:41.621934Z"}],"euvd":[{"id":"EUVD-2015-2168","description":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service via a long string in the oldpassword parameter.","status":"published","published":"2015-02-23T17:00:00Z","modified":"2024-08-06T05:02:43Z","updated_at":"2026-11-03T02:22:13.253223Z"}],"ghsa":[{"id":"GHSA-wpfg-h6pp-74wp","title":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service...","description":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service via a long string in the oldpassword parameter.","status":"published","published":"2022-05-17T03:37:45Z","modified":"2023-01-27T05:07:26Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:07.326529Z"}],"nvd":[{"id":"CVE-2015-2055","description":"Zhone GPON 2520 with firmware R4.0.2.566b allows remote attackers to cause a denial of service via a long string in the oldpassword parameter.","status":"published","published":"2015-02-23T17:59:12.167Z","modified":"2026-06-17T00:23:31.16Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:01.643178Z"}]}}