CVE-2020-25245

Local SYSTEM execution via writable DLL path

Published Feb 9, 2021 · Updated Aug 4, 2024

Privilege escalation in Siemens DIGSI 4 before V4.94 SP1 HF 1 allows local users to execute code as SYSTEM via writable DLL search-path folders. Several directories in the Windows %PATH% are writable by normal users but searched for DLLs by DIGSI 4 or related processes. A local authenticated user can plant a malicious DLL, and execution occurs with SYSTEM privileges, enabling full confidentiality, integrity, and availability impact.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Privilege escalation in Siemens DIGSI 4 before V4.94 SP1 HF 1 allows local users to execute code as SYSTEM via writable DLL search-path folders. Several directories in the Windows %PATH% are writable by normal users but searched for DLLs by DIGSI 4 or related processes. A local authenticated user can plant a malicious DLL, and execution occurs with SYSTEM privileges, enabling full confidentiality, integrity, and availability impact.

The record

CVE
CVE-2020-25245
Published
Feb 9, 2021
Updated
Aug 4, 2024
Vendor
Siemens
Product
DIGSI 4
Classifications
CWE-276, T1574.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=All versions < V4.94 SP1 HF 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · DIGSI 4version=All versions < V4.94 SP1 HF 1

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2NVDAV:L/AC:L/Au:N/C:C/I:C/A:C

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1574.002DLL Side-Loading

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo