CVE-2020-15732
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is an improper certificate validation vulnerability in Bitdefender's Online Threat Prevention module that allows attackers to potentially bypass HTTP Strict Transport Security (HSTS) checks. The vulnerability stems from insufficient validation of SSL/TLS certificates, enabling man-in-the-middle attacks that could intercept encrypted communications. This is a security feature bypass (CWE-295) with a CVSS 7.5 HIGH severity rating.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 25.0.7.29< 25.0.7.29< 25.0.7.29CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Bitdefender product is installedOpen Control Panel > Programs and Features, or use 'Get-ItemProperty' in PowerShell to query registry keys under HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ for Bitdefender entry names containing 'Bitdefender Antivirus Plus', 'Bitdefender Internet Security', or 'Bitdefender Total Security'.Affected if No Bitdefender product from the affected line is found, the system is not vulnerable.
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Identify the installed Bitdefender product nameReview the program name from the uninstall entry or check Bitdefender's main UI for the product tier (Antivirus Plus, Internet Security, or Total Security).Affected if The specific product name determines which vulnerable line applies.
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Locate the installed version numberIn the same registry uninstall key, read the 'DisplayVersion' value, or open Bitdefender Central / the local Bitdefender interface and navigate to the 'About' or 'Support' section to view the installed version.Affected if The version number is below 25.0.7.29 - the system is running a vulnerable release.
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Check if Online Threat Prevention module is activeOpen Bitdefender main window, go to Protection > Online Threat Prevention, or check the status in the system tray icon. Verify whether the module is turned ON or has active shields.Affected if The vulnerability exists in this module; if it is enabled, exploitation becomes possible.
You are affected if any of Antivirus Plus, Internet Security, or Total Security is installed with a version lower than 25.0.7.29 and the Online Threat Prevention module is enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data25.0.7.29
Update affected Bitdefender products (Total Security, Internet Security, Antivirus Plus) to version 25.0.7.29 or later to remediate the vulnerability. This is a vendor-supplied patch delivered through normal product update mechanisms.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-15732 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-15732 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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