{"id":"CVE-2021-21723","aliases":["EUVD-2021-8895","GHSA-7h22-x3wx-hv9p"],"status":"published","title":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in...","description":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.","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":"2026-11-10","score":0.01209,"percentile":0.68659,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-401"],"published":"2021-01-21T19:05:49Z","modified":"2026-06-17T03:36:02Z","products":[{"vendor":"zte","product":"zxr10_9904-s_firmware"},{"vendor":"zte","product":"zxr10_9904_firmware"},{"vendor":"zte","product":"zxr10_9908-s_firmware"},{"vendor":"zte","product":"zxr10_9908_firmware"},{"vendor":"zte","product":"zxr10_9916_firmware"}],"references":[{"url":"http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014424","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21723"},{"url":"https://github.com/advisories/GHSA-7h22-x3wx-hv9p"}],"sources":{"cve":[{"id":"CVE-2021-21723","description":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.","status":"published","published":"2021-01-21T19:05:49Z","modified":"2024-08-03T18:23:29.438Z","updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-8895","description":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.","status":"published","published":"2021-01-21T19:05:49Z","modified":"2024-08-03T18:23:29Z","updated_at":"2026-11-03T03:25:05.131984Z"}],"ghsa":[{"id":"GHSA-7h22-x3wx-hv9p","title":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in...","description":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.","status":"published","published":"2022-05-24T17:40:19Z","modified":"2023-01-29T05:05:10Z","cwes":["CWE-401"],"updated_at":"2026-11-02T14:45:43.934947Z"}],"nvd":[{"id":"CVE-2021-21723","description":"Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.","status":"published","published":"2021-01-26T18:16:18.803Z","modified":"2026-06-17T03:36:02.517Z","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"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:06:49.660551Z"}]}}