CVE-2020-8100Network attack vector

Service interruption via malformed scan sample

Published May 15, 2020 · Updated Sep 16, 2024

Improper input validation in Bitdefender Engines before 7.84063 allows remote attackers to interrupt scanning with a crafted sample. The cevakrnl.rv0 module does not fully validate sample data before the engine processes it during scanning, triggering denial of service. Exploitation requires the crafted sample to reach an affected engine for scanning; published sources report no data access or modification.

CVSS severity9.0
Critical
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Bitdefender Engines before 7.84063 allows remote attackers to interrupt scanning with a crafted sample. The cevakrnl.rv0 module does not fully validate sample data before the engine processes it during scanning, triggering denial of service. Exploitation requires the crafted sample to reach an affected engine for scanning; published sources report no data access or modification.

The record

CVE
CVE-2020-8100
Published
May 15, 2020
Updated
Sep 16, 2024
Vendor
Bitdefender
Product
Bitdefender Engines
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <7.84063

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bitdefender · Bitdefender Enginesversion=unspecified <7.84063

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.0BitdefenderCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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