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Modified firmware upload in Schneider Electric Sage RTU devices

Priority LOW 38CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-345.

Summary

Schneider Electric Sage RTU 1410, 1430, 1450, 2400, 3030 Magnum and 4400 are affected in all versions prior to C3414-500-S02L0. Insufficient verification of data authenticity (CWE-345) lets modified firmware be uploaded when an authorized admin user begins a firmware update. An attacker with admin privileges over the network can thereby gain control of the device.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

CWE-345: Insufficient Verification of Data Authenticity vulnerability exists that could allow modified firmware to be uploaded when an authorized admin user begins a firmware update procedure which could result in control over the device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00152 4th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Schneider ElectricSage RTU 1410All versions prior to version C3414-500-S02L0—No fix listedCNA
Schneider ElectricSage RTU 1430All versions prior to version C3414-500-S02L0—No fix listedCNA
Schneider ElectricSage RTU 1450All versions prior to version C3414-500-S02L0—No fix listedCNA
Schneider ElectricSage RTU 2400All versions prior to version C3414-500-S02L0—No fix listedCNA
Schneider ElectricSage RTU 3030 MagnumAll versions prior to version C3414-500-S02L0—No fix listedCNA
Schneider ElectricSage RTU 4400All versions prior to version C3414-500-S02L0—No fix listedCNA
  • Sage RTU 1410 VendorSchneider Electric Affected All versions prior to version C3414-500-S02L0 Fixed in — No fix listed CNA
  • Sage RTU 1430 VendorSchneider Electric Affected All versions prior to version C3414-500-S02L0 Fixed in — No fix listed CNA
  • Sage RTU 1450 VendorSchneider Electric Affected All versions prior to version C3414-500-S02L0 Fixed in — No fix listed CNA
  • Sage RTU 2400 VendorSchneider Electric Affected All versions prior to version C3414-500-S02L0 Fixed in — No fix listed CNA
  • Sage RTU 3030 Magnum VendorSchneider Electric Affected All versions prior to version C3414-500-S02L0 Fixed in — No fix listed CNA
  • Sage RTU 4400 VendorSchneider Electric Affected All versions prior to version C3414-500-S02L0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Sage RTU 1410, Sage RTU 1430, Sage RTU 1450, Sage RTU 2400, Sage RTU 3030 Magnum or Sage RTU 4400.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-102250
  2. 2026-10-13 Alias added: GHSA-8qvf-7x74-jr2f
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: MEDIUM → LOW

References

  • TI-2018-05679 SQL injection in U.motion Builder software version 1.3.4 KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-05589 Hard-coded credentials in EVlink City , EVlink Parking , and EVlink Smart Wallbox CVSS 3.1CRITICAL 9.8
  • TI-2022-15561 OS command injection in Schneider Electric SpaceLogic C-Bus Home Controller CVSS 3.1HIGH 8.8
  • TI-2023-04970 Path traversal in Schneider Electric C-Bus Toolkit CVSS 3.1CRITICAL 9.8
  • TI-2019-04862 Improper handling of exceptional conditions in Schneider Electric Modicon M580 CVSS 3.1HIGH 7.5
  • TI-2018-05690 Improper handling of exceptional conditions in Modicon M580 Modicon M340 Modicon Quantum… CVSS 3.1HIGH 7.5
See all 888 →

Sources