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 v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionActive
Threat
Exploit MaturityUnreported
Vulnerable System
ConfidentialityNone
IntegrityHigh
AvailabilityNone
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | cve.org | initial, patch: Unavailable | 2.1 |
Affected Software
| Vendor | Product | Version |
|---|
| Bitdefender | Antivirus Plus | < 25.0.7.29 |
| bitdefender | antivirus_plus | < 25.0.7.29 |
| Bitdefender | Internet Security | < 25.0.7.29 |
| bitdefender | internet_security | < 25.0.7.29 |
| Bitdefender | Total Security | < 25.0.7.29 |
| bitdefender | total_security | < 25.0.7.29 |
Published: 2021-06-22
