Medium severity · published Jul 8, 2025
CVE-2025-27127
A vulnerability has been identified in TIA Project-Server (All versions < V2.1.1), TIA Project-Server V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V17…
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability has been identified in TIA Project-Server (All versions < V2.1.1), TIA Project-Server V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V18 (All versions), Totally Integrated Automation Portal (TIA Portal) V19 (All versions < V19 Update 4), Totally Integrated Automation Portal (TIA Portal) V20 (All versions < V20 Update 3). The affected application improperly handles uploaded projects in the document root. This could allow an attacker with contributor privileges to cause denial of service by uploading a malicious project.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TP
TIA Project-Server · Siemens
before V2.1.1 · source: vendor
TP
TIA Project-Server V17 · Siemens
0 · source: vendor
TI
Totally Integrated Automation Portal (TIA Portal) V17 · Siemens
0 · source: vendor
TI
Totally Integrated Automation Portal (TIA Portal) V18 · Siemens
0 · source: vendor
TI
Totally Integrated Automation Portal (TIA Portal) V19 · Siemens
before V19 Update 4 · source: vendor
TI
Totally Integrated Automation Portal (TIA Portal) V20 · Siemens
before V20 Update 3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27127
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-27127
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-460466.html
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