Critical severity · published May 12, 2026
CVE-2026-25787
Affected devices do not properly validate and sanitize Technology Object (TO) name rendered on the "Motion Control Diagnostics" page of the web interface
9.1
CVSS
0.4%
EPSS
No
On KEV
Description
Affected devices do not properly validate and sanitize Technology Object (TO) name rendered on the "Motion Control Diagnostics" page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page. If a benign user with appropriate rights accesses the "Motion Control Diagnostics" parameters page, the malicious code would be executed in the scope of their web session.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SD
SD
SE
SIMATIC ET 200SP CPU 1510SP F-1 PN · Siemens
0; before V2.9.9; before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1510SP-1 PN · Siemens
0; before V2.9.9; before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1512SP F-1 PN · Siemens
0; before V2.9.9; before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1512SP-1 PN · Siemens
0; before V2.9.9; before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1514SP F-2 PN · Siemens
before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1514SP-2 PN · Siemens
before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1514SPT F-2 PN · Siemens
before V4.1.6 · source: vendor
SE
SIMATIC ET 200SP CPU 1514SPT-2 PN · Siemens
before V4.1.6 · source: vendor
Affected product
SD
SIMATIC Drive Controller CPU 1504D TF
Siemens
More from SIMATIC Drive Controller CPU 1504D TF
9.6
CVE-2026-63354
Affected devices do not properly validate and sanitize visual marker data contained in imported CSV trace files before rendering it on the Trace page
9.6
CVE-2026-63353
Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page
9.6
CVE-2026-63350
Affected devices do not properly restrict executable content contained in imported trace files
9.1
CVE-2026-25786
Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface
7.1
CVE-2026-25789
Affected devices do not properly validate and sanitize filenames on the Firmware Update page