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CVE-2026-25789

Published: May 12, 2026Updated: Jul 14, 2026 Sources: CVE List NVD csafCWE-79
7.1HIGH
NVD MITRE
EPSS Score
0.3%
Top 80.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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

Siemens
commercial·DEaka siemens ag
SIMATIC Drive Controller CPU 1504D TF
ICS / OT / IoT
SIMATIC Drive Controller CPU 1507D TF
ICS / OT / IoT
SIMATIC ET 200SP CPU 1510SP F-1 PN
ICS / OT / IoT
SIMATIC ET 200SP CPU 1510SP-1 PN
ICS / OT / IoT
SIMATIC ET 200SP CPU 1512SP F-1 PN
ICS / OT / IoT
SIMATIC ET 200SP CPU 1512SP-1 PN
ICS / OT / IoT
SIMATIC ET 200SP CPU 1514SP F-2 PN
ICS / OT / IoT
SIMATIC ET 200SP CPU 1514SP-2 PN
ICS / OT / IoT
and 94 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-25789?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

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 →

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