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Vulnerability record · CVE-2020-15732 · published 22 June 2021

CVE-2020-15732: Bitdefender antivirus plus improper certificate validation vulnerability

Bitdefender · Antivirus Plus

Improper Certificate Validation vulnerability in the Online Threat Prevention module as used in Bitdefender Total Security allows an attacker to potentially bypass HTTP Strict Transport Security (HSTS) checks. This issue affects: Bitdefender Total Security versions prior to 25.0.7.29. Bitdefender Internet Security versions prior to 25.0.7.29. Bitdefender Antivirus Plus versions prior to 25.0.7.29.

7.5 CVSS 3.1 High EPSS 0.55% · top 53.3% CWE-295 · Improper certificate validation
7.5CVSS 3.1 base score, v2 5.0
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Improper Certificate Validation vulnerability in the Online Threat Prevention module as used in Bitdefender Total Security allows an attacker to potentially bypass HTTP Strict Transport Security (HSTS) checks. This issue affects: Bitdefender Total Security versions prior to 25.0.7.29. Bitdefender Internet Security versions prior to 25.0.7.29. Bitdefender Antivirus Plus versions prior to 25.0.7.29.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.bitdefender.com/support/security-advisories/improper-certificate-validation-bitdefender-total-security-va-89 Vendor Advisory
https://www.bitdefender.com/support/security-advisories/improper-certificate-validation-bitdefender-total-security-va-89 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2007-5775Bitdefender antivirus code injection vulnerabilityUnspecified vulnerability in BitDefender allows attackers to execute arbitrary code via unspecified vectors, aka EEYEB-20071024. NOTE: as of 20071029…EPSS 29%8.8CVE-2025-7073Bitdefender antivirus link following vulnerabilityA local privilege escalation vulnerability in Bitdefender Total Security versions prior to 27.0.47.241 allows low-privileged attackers to elevate pri…EPSS 0.18%8.6CVE-2023-49570Bitdefender total security improper certificate validation vulnerabilityA vulnerability has been identified in Bitdefender Total Security HTTPS scanning functionality where the software trusts a certificate issued by an e…EPSS 0.21%8.6CVE-2023-6057Bitdefender total security improper certificate validation vulnerabilityA vulnerability has been discovered in Bitdefender Total Security HTTPS scanning functionality that results in the improper trust of certificates iss…EPSS 0.21%8.6CVE-2023-6055Bitdefender total security improper certificate validation vulnerabilityA vulnerability has been identified in Bitdefender Total Security HTTPS scanning functionality where the software fails to properly validate website …EPSS 0.24%8.6CVE-2023-49567Bitdefender total security improper certificate validation vulnerabilityA vulnerability has been identified in the Bitdefender Total Security HTTPS scanning functionality where the product incorrectly checks the site's ce…EPSS 0.19%8.6CVE-2023-6058Bitdefender total security improper certificate validation vulnerabilityA vulnerability has been identified in Bitdefender Safepay's handling of HTTPS connections. The issue arises when the product blocks a connection due…EPSS 0.19%8.6CVE-2023-6056Bitdefender total security improper certificate validation vulnerabilityA vulnerability has been discovered in Bitdefender Total Security HTTPS scanning functionality that results in the improper trust of self-signed cert…EPSS 0.21%

Source: NIST National Vulnerability Database (record CVE-2020-15732), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.