CVE-2020-25238: siemens pcs neo (administration console) Improper Access Control
Vulnerability summary
CVE-2020-25238 is a high (CVSS 7.8) Improper Access Control vulnerability in siemens pcs neo (administration console). EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 57.8% of scored vulnerabilities.
Timeline
- 09-02-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability has been identified in PCS neo (Administration Console) (All versions < V3.1), TIA Portal (V15, V15.1 and V16). Manipulating certain files in specific folders could allow a local attacker to execute code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.86%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
0.00 pp
From 0.86% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
- CWE-427Uncontrolled Search Path ElementThe product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.
Affected systems
Siemens4 products
- pcs neo (administration console)All versions < V3.1
- simatic_process_control_system_neo< 3.1
- tia_portalV15, V15.1 and V16
- totally_integrated_automation_portal15 | 15.1 | 16
1 vendor · 4 products
References
3 links
us-cert.cisa.gov/ics/advisories/icsa-21-040-05X Refsource MISCThird Party AdvisoryUS Government ResourceVDB Entry