CVE-2019-20456

Local privilege escalation via DLL search hijacking

Published Feb 16, 2020 · Updated Aug 5, 2024

DLL hijacking in Goverlan Reach Console, Reach Server, and Client Agent allows local users to gain elevated privileges through local library loading. The published record identifies an untrusted DLL search path but does not disclose the executable, target library, or attacker-writable search location. The affected versions are Reach Console before 9.50, Reach Server before 3.50, and Client Agent before 9.20.50; exploitation requires local placement of a crafted DLL and user interaction, and injected code runs with the vulnerable process's rights.

CVSS severity7.8
High
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL hijacking in Goverlan Reach Console, Reach Server, and Client Agent allows local users to gain elevated privileges through local library loading. The published record identifies an untrusted DLL search path but does not disclose the executable, target library, or attacker-writable search location. The affected versions are Reach Console before 9.50, Reach Server before 3.50, and Client Agent before 9.20.50; exploitation requires local placement of a crafted DLL and user interaction, and injected code runs with the vulnerable process's rights.

The record

CVE
CVE-2019-20456
Published
Feb 16, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-426, CAPEC-38, T1574.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 16, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.4NIST NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
7.8NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-426Untrusted Search Path
CAPEC-38Leveraging/Manipulating Configuration File Search Paths
T1574.001DLL

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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