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EnginesApplication · Bitdefender

CVE-2020-8100

HIGH · 7.5 CVSS v3.1 Published 2020-05-15
Fix available
A fix is available. Upgrade to 7.84063 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Improper Input Validation vulnerability in the cevakrnl.rv0 module as used in the Bitdefender Engines allows an attacker to trigger a denial of service while scanning a specially-crafted sample. This issue affects: Bitdefender Bitdefender Engines versions prior to 7.84063.

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 · moderate confidence

Improper input validation vulnerability in the cevakrnl.rv0 scanning engine module allows a specially-crafted malicious file to trigger denial of service when scanned by vulnerable Bitdefender Engines versions prior to 7.84063.

MitigationUpgrade Bitdefender Engines to version 7.84063 or later to remediate this vulnerability.

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
EnginesApplication
Affected:< 7.84063

CVSS 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
None
Availability
High

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

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Bitdefender Engines installation
    Locate the Bitdefender security product installation on the system and confirm the scanning engine components are present
    Affected if Bitdefender Engines or related security product is installed on the system
  2. Determine installed Bitdefender Engines version
    Use the appropriate method to check the version of the Bitdefender scanning engine (such as about dialog, version information in the security product, or engine version display command)
    Affected if The detected version is any version prior to 7.84063
  3. Verify cevakrnl.rv0 module presence
    Check for the existence of the cevakrnl.rv0 scanning engine module within the Bitdefender installation directory or modules directory
    Affected if The cevakrnl.rv0 module file is present in the Bitdefender installation

User is affected if Bitdefender Engines version is detected as lower than 7.84063 and the cevakrnl.rv0 module is present in the installation, as this combination allows the improper input validation flaw to be triggered when a specially-crafted file is scanned.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to 7.84063 or later
Fixed in 7.84063
Interim mitigation

Upgrade Bitdefender Engines to version 7.84063 or later to remediate this vulnerability.

Fix this in Engines Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,664.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-8100 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data