CVE-2023-6055: bitdefender total_security Improper Certificate Validation
Vulnerability summary
CVE-2023-6055 is a high (CVSS 8.6) Improper Certificate Validation vulnerability in bitdefender total_security. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
Timeline
- 18-10-2024PublishedVulnerability first disclosed.
- 18-10-2024Last modifiedVulnerability information updated.
Description
A vulnerability has been identified in Bitdefender Total Security HTTPS scanning functionality where the software fails to properly validate website certificates. Specifically, if a site certificate lacks the "Server Authentication" specification in the Extended Key Usage extension, the product does not verify the certificate's compliance with the site, deeming such certificates as valid. This flaw could allow an attacker to perform a Man-in-the-Middle (MITM) attack, intercepting and potentially altering communications between the user and the website.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST8.6HighCVSS: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:X/V:X/RE:X/U:X
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Bitdefender1 product
- total_security< 27.0.25.115
1 vendor · 1 product
References
1 links- bitdefender.com/support/…Vendor Advisory