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TI-2026-39602 Aliases CVE-2026-54799GHSA-j26p-j946-5hv2

A vulnerability has been identified in CPCI85 Central Processing/Communication (All…

Priority LOW 38CWE-489Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application contains a vulnerability in its firmware update mechanism's signature validation process. This could allow an attacker to install malicious firmware, leading to persistent code execution and system compromise.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00183 7th percentileScored 2026-11-07
Fix Fixed CPCI85 Central Processing/Communication (Siemens): V26.20SICORE Base system (Siemens): V26.20.0

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
SiemensCPCI85 Central Processing/Communicationbefore V26.20V26.20Patch availableCNA
SiemensSICORE Base systembefore V26.20.0V26.20.0Patch availableCNA
  • CPCI85 Central Processing/Communication VendorSiemens Affected before V26.20 Fixed in V26.20 Patch available CNA
  • SICORE Base system VendorSiemens Affected before V26.20.0 Fixed in V26.20.0 Patch available CNA

Remediation

  • Fix · CNA CPCI85 Central Processing/Communication (Siemens) Fixed in V26.20
  • Fix · CNA SICORE Base system (Siemens) Fixed in V26.20.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Siemens CPCI85 Central Processing/Communication, SICORE Base system V26.20, V26.20.0

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-39604 A vulnerability has been identified in CPCI85 Central Processing/Communication (All…Priority MEDIUM 40
    • TI-2026-39601 A vulnerability has been identified in CPCI85 Central Processing/Communication (All…Priority LOW 31
    • TI-2026-39603 A vulnerability has been identified in CPCI85 Central Processing/Communication (All…Priority LOW 27
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54799
  2. 2026-10-03 Alias added: GHSA-j26p-j946-5hv2

References

Other 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
See all 2487 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences