A vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V16 Update 3a), SIMATIC HMI KTP Mobile Panels (All versions < V16 Update 3a), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). Affected devices with enabled telnet service do not require authentication for this service. This could allow a remote attacker to gain full access to the device. (ZDI-CAN-12046)
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 7.2 → 8.2 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 7.2 → 7.2 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 7.2 |
Affected Software
| Vendor | Product | Version |
|---|
| Siemens | SIMATIC HMI Comfort Panels (incl. SIPLUS variants) | < 16 Update 3a |
| Siemens | SIMATIC HMI KTP Mobile Panels | < 16 Update 3a |
| siemens | simatic_hmi_comfort_panels_firmware | < 16.0 |
| siemens | simatic_hmi_comfort_panels_firmware | 16.0 |
| siemens | simatic_hmi_ktp_mobile_panels_firmware | < 16.0 |
| siemens | simatic_hmi_ktp_mobile_panels_firmware | 16.0 |
| Siemens | SINAMICS GH150 | All versions |
| Siemens | SINAMICS GL150 (with option X30) | All versions |
| Siemens | SINAMICS GM150 (with option X30) | All versions |
| Siemens | SINAMICS SH150 | All versions |
| Siemens | SINAMICS SL150 | All versions |
| Siemens | SINAMICS SM120 | All versions |
| Siemens | SINAMICS SM150 | All versions |
| Siemens | SINAMICS SM150i | All versions |
| siemens | sinamics_gh150_firmware | All versions |
| siemens | sinamics_gl150_firmware | All versions |
| siemens | sinamics_gm150_firmware | All versions |
| siemens | sinamics_sh150_firmware | All versions |
| siemens | sinamics_sl150_firmware | All versions |
| siemens | sinamics_sm120_firmware | All versions |
| siemens | sinamics_sm150_firmware | All versions |
| siemens | sinamics_sm150i_firmware | All versions |
Published: 2021-02-09
