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CVE-2026-25789

Published: May 12, 2026Updated: May 12, 2026 Sources: CVE List NVD csafCWE-79
NVD MITRE
7.1CVSSHIGH
EPSS Score
0.3%
Top 81.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Affected devices do not properly validate and sanitize filenames on the Firmware Update page. This could allow a remote attacker to social engineer the user into selecting the modified firmware file to be uploaded. This would result in malitcious JavaScript execution in the context of the authenticated user's session without requiring the file to be uploaded, potentially leading to session hijacking or credential theft.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

SIMATIC Drive Controller CPU 1504D TFSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC Drive Controller CPU 1507D TFSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC ET 200SP CPU 1510SP F-1 PNSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC ET 200SP CPU 1510SP-1 PNSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC ET 200SP CPU 1512SP F-1 PNSiemens
On-prem
Enterprise Software / collaboration-groupware
siemenscommercialDEEnterprise Softwareaka siemens ag
and 97 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/html/ssa-688146.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-688146.json
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-134-15.json
raw.githubusercontent.com
and 13 more references View all →

Timeline

Published
May 12, 2026
Last Updated
May 12, 2026

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