CVE-2020-36916Public exploit

Local privilege escalation via modifiable executable files

Published Jan 6, 2026 · Updated Jan 6, 2026

Local privilege escalation in TDM Signage TDM PC Player 4.1.0.4 allows local users to execute replacement binaries with elevated rights. The installation grants the Windows Authenticated Users group Modify permission on the TDMSignage directory, including Player.exe and unins000.exe. A local authenticated Windows account can replace those binaries and gains elevated system access when a substituted file runs in a privileged context.

CVSS severity8.5
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in TDM Signage TDM PC Player 4.1.0.4 allows local users to execute replacement binaries with elevated rights. The installation grants the Windows Authenticated Users group Modify permission on the TDMSignage directory, including Player.exe and unins000.exe. A local authenticated Windows account can replace those binaries and gains elevated system access when a substituted file runs in a privileged context.

The record

CVE
CVE-2020-36916
Published
Jan 6, 2026
Updated
Jan 6, 2026
Vendor
TDM Signage
Product
TDM PC Player
Classifications
CWE-732, T1574
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 2026Record 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=4.1.0.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

TDM Signage · TDM PC Playerversion=4.1.0.4

Published CVSS scores

8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1574Hijack Execution Flow

Public exploit references

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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