CVE-2020-36478

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). A NULL algorithm parameters entry looks identical to an array of REAL (size zero) and thus the certificate is considered valid. However, if the parameters do not match in any way, then the certificate should be considered invalid.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published
Aug 23, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-36487.8u'Possible out of bound write in DSP driver code due to lack of check of data received from user' in Snapdragon Auto, Snapdragon Compute, SnCVE-2020-364857.8Portable Ltd Playable v9.18 was discovered to contain an arbitrary file upload vulnerability in the filename parameter of the upload module.CVE-2020-364866.1Swift File Transfer Mobile v1.1.2 and below was discovered to contain a cross-site scripting (XSS) vulnerability via the 'path' parameter ofCVE-2020-364886.5An issue in the FTP server of Sky File v2.1.0 allows attackers to perform directory traversal via `/null//` path commands.CVE-2020-364895.4Dropouts Technologies LLP Air Share v1.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the devicename parameter. TCVE-2020-364905.4DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component file_manage_view.php via theCVE-2020-364915.4DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component tags_main.php via the `activCVE-2020-364925.4DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component select_media.php via the `acCVE-2020-364935.4DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component media_main.php via the `actiCVE-2020-364946.1DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component mychannel_edit.php via the `CVE-2020-364956.1DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component file_manage_view.php via theCVE-2020-364966.1DedeCMS v7.5 SP2 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities in the component sys_admin_user_edit.php via
CVE-2020-36478: High severity, CVSS 7.5 | Vulnix