{"id":"CVE-2020-14937","aliases":["EUVD-2020-7073","GHSA-vjv3-cq6j-9224"],"status":"published","title":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in...","description":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01478,"percentile":0.7406,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-787"],"published":"2020-08-18T15:27:37Z","modified":"2026-06-17T02:55:48Z","products":[{"vendor":"contiki-ng","product":"contiki-ng"}],"references":[{"url":"https://drive.google.com/file/d/1mAkJBVZNv5PMVwLojru0njH38zEXpWui/view?usp=sharing","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/contiki-ng/contiki-ng/issues/1354","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14937"},{"url":"https://github.com/advisories/GHSA-vjv3-cq6j-9224"}],"sources":{"cve":[{"id":"CVE-2020-14937","description":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions.","status":"published","published":"2020-08-18T15:27:37Z","modified":"2024-08-04T13:00:52.114Z","updated_at":"2026-11-02T14:35:46.476719Z"}],"euvd":[{"id":"EUVD-2020-7073","description":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions.","status":"published","published":"2020-08-18T15:27:37Z","modified":"2024-08-04T13:00:52Z","updated_at":"2026-11-03T03:07:33.617168Z"}],"ghsa":[{"id":"GHSA-vjv3-cq6j-9224","title":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in...","description":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions.","status":"published","published":"2022-05-24T17:26:06Z","modified":"2023-01-29T05:03:48Z","updated_at":"2026-11-02T14:45:24.208268Z"}],"nvd":[{"id":"CVE-2020-14937","description":"Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions.","status":"published","published":"2020-08-18T16:15:13.713Z","modified":"2026-06-17T02:55:48.41Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125","CWE-787"],"updated_at":"2026-11-02T14:06:13.05572Z"}]}}