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Vulnerability record · CVE-2023-49567 · published 18 October 2024

CVE-2023-49567: Bitdefender total security improper certificate validation vulnerability

Bitdefender · Total Security

A vulnerability has been identified in the Bitdefender Total Security HTTPS scanning functionality where the product incorrectly checks the site's certificate, which allows an attacker to make MITM SSL connections to an arbitrary site. The product trusts certificates that are issued using the MD5 and SHA1 collision hash functions which allow attackers to create rogue certificates that appear legitimate.

8.6 CVSS 4.0 High EPSS 0.19% · top 91.8% CWE-295 · Improper certificate validation
8.6CVSS 4.0 base score
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in the Bitdefender Total Security HTTPS scanning functionality where the product incorrectly checks the site's certificate, which allows an attacker to make MITM SSL connections to an arbitrary site. The product trusts certificates that are issued using the MD5 and SHA1 collision hash functions which allow attackers to create rogue certificates that appear legitimate.

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://www.bitdefender.com/support/security-advisories/insecure-trust-of-certificates-using-collision-hash-functions-in 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 27%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 0.17%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-2023-6055Bitdefender 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-2023-6056Bitdefender 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%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-2023-6058Bitdefender 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%7.8CVE-2023-6154Bitdefender antivirus vulnerabilityA configuration setting issue in seccenter.exe as used in Bitdefender Total Security, Bitdefender Internet Security, Bitdefender Antivirus Plus, Bitd…EPSS 0.20%

Source: NIST National Vulnerability Database (record CVE-2023-49567), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.