Security readout for executives and security teams
Plain-English summary
Siemens LOGO! Soft Comfort before V8.4 can load libraries insecurely. A local attacker could abuse that behavior to take over the computer where the engineering software is installed. This is mainly an endpoint and engineering-workstation risk, not a remote internet-facing service issue based on the provided sources.
Executive priority
Treat this as a high-priority workstation hardening and upgrade item for environments using Siemens LOGO! Soft Comfort. The business risk is compromise of engineering workstations, which can affect industrial operations even though the source describes local rather than remote exploitation.
Technical view
CVE-2020-25244 is a CWE-427 uncontrolled search path issue in Siemens LOGO! Soft Comfort. The CVSS 3.1 score is 8.4 with local attack vector, low complexity, no privileges, and high confidentiality, integrity, and availability impact. Affected versions are all versions before V8.4.
Likely exposure
Organizations using Siemens LOGO! Soft Comfort versions earlier than V8.4 on engineering or administrative workstations are the exposed population. Exposure depends on local access to the workstation and whether an attacker can place malicious libraries in locations the application may load from.
Exploitation context
The bundle describes exploitation by a local attacker leading to system takeover. It does not cite active exploitation, and the CVE is not marked as KEV. No public exploit status beyond CVSS exploit code maturity “proof-of-concept” is provided in the bundle.
Researcher notes
Evidence is limited to the CVE record and Siemens advisory reference in the bundle. The core issue is DLL hijacking through insecure library loading. Avoid assuming internet exposure or active exploitation without additional evidence. Focus validation on installed version, local write paths, and workstation control boundaries.
Mitigation direction
- Upgrade LOGO! Soft Comfort to V8.4 or later where applicable.
- Review Siemens SSA-983300 for official remediation and deployment guidance.
- Restrict local write access to application and working directories.
- Harden engineering workstations with least privilege and endpoint monitoring.
- Prioritize systems used for industrial automation engineering work.
Validation and detection
- Inventory LOGO! Soft Comfort installations and record exact versions.
- Flag any installation running a version earlier than V8.4.
- Confirm application directories are not writable by untrusted users.
- Review endpoint telemetry for unexpected library loads by the application.
- Verify upgraded hosts report V8.4 or later.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-427: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-25244 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/pdf/ssa-983300.pdfCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Search Path Element
Uncontrolled Search Path Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.