CVE-2020-6771

Code execution via same-directory DLL preloading

Published Mar 25, 2021 · Updated Sep 16, 2024

DLL search-order hijacking in Bosch IP Helper 1.00.0008 and earlier allows local users to execute code when the application starts. At startup, the portable executable loads a DLL from its application directory without ensuring that the library is trusted. An attacker must induce a victim to place a malicious DLL beside the executable and launch it; the DLL then runs with the victim's privileges.

CVSS severity7.8
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL search-order hijacking in Bosch IP Helper 1.00.0008 and earlier allows local users to execute code when the application starts. At startup, the portable executable loads a DLL from its application directory without ensuring that the library is trusted. An attacker must induce a victim to place a malicious DLL beside the executable and launch it; the DLL then runs with the victim's privileges.

The record

CVE
CVE-2020-6771
Published
Mar 25, 2021
Updated
Sep 16, 2024
Vendor
Bosch Security Systems B.V.
Product
IP Helper
Classifications
CWE-427, T1574.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2021CVE 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 <=1.00.0008

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Bosch Security Systems B.V. · IP Helperversion=unspecified <=1.00.0008

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.9NIST NVDAV:L/AC:M/Au:N/C:C/I:C/A:C
7.8Robert Bosch GmbHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.001DLL Search Order Hijacking

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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