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TI-2023-11727 Aliases CVE-2023-26593GHSA-hfx7-v8g3-wm7q

Cleartext storage of sensitive information in Yokogawa Electric Corporation CENTUM series

Priority LOW 35CWE-312Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-312.

Summary

CENTUM series provided by Yokogawa Electric Corporation are vulnerable to cleartext storage of sensitive information. If an attacker who can login or access the computer where the affected product is installed tampers the password file stored in the computer, the user privilege which CENTUM managed may be escalated. As a result, the control system may be operated with the escalated user privilege. To exploit this vulnerability, the following prerequisites must be met: (1)An attacker has obtained user credentials where the affected product is installed, (2)CENTUM Authentication Mode is used for user authentication when CENTUM VP is used. The affected products and versions are as follows: CENTUM CS 1000, CENTUM CS 3000 (Including CENTUM CS 3000 Entry Class) R2.01.00 to R3.09.50, CENTUM VP (Including CENTUM VP Entry Class) R4.01.00 to R4.03.00, R5.01.00 to R5.04.20, and R6.01.00 and later, B/M9000 CS R5.04.01 to R5.05.01, and B/M9000 VP R6.01.01 to R7.04.51 and R8.01.01 and later

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00136 3rd 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
Yokogawa Electric CorporationCENTUM seriesCENTUM CS 1000, CENTUM CS 3000 (Including CENTUM CS 3000 Entry Class) R2.01.00 to R3.09.50, CENTUM VP (Including CENTUM VP Entry Class) R4.01.00 to R4.03.00, R5.01.00 to R5.04.20, and R6.01.00 and later, B/M9000 CS R5.04.01 to R5.05.01, and B/M9000 VP R6.01.01 to R7.04.51 and R8.01.01 and later—No fix listedCNA
  • CENTUM series VendorYokogawa Electric Corporation Affected CENTUM CS 1000, CENTUM CS 3000 (Including CENTUM CS 3000 Entry Class) R2.01.00 to R3.09.50, CENTUM VP (Including CENTUM VP Entry Class) R4.01.00 to R4.03.00, R5.01.00 to R5.04.20, and R6.01.00 and later, B/M9000 CS R5.04.01 to R5.05.01, and B/M9000 VP R6.01.01 to R7.04.51 and R8.01.01 and later Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:yokogawa:b\/m9000_vp:*:*:*:*:*:*:*:*r6.01.01 – r7.04.51; r8.01.01VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:b\/m9000cs:*:*:*:*:*:*:*:*r5.04.01 – r5.05.01VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:centum_cs_1000:*:*:*:*:*:*:*:*r2.01.00 – r3.09.50VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:centum_cs_3000:*:*:*:*:*:*:*:*r2.01.00 – r3.09.50VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:centum_cs_3000_entry_class:*:*:*:*:*:*:*:*r2.01.00 – r3.09.50VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:centum_vp:*:*:*:*:*:*:*:*r4.01.00 – r4.03.00; r5.01.00 – r5.04.20; r6.01.00VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:centum_vp_entry_class:*:*:*:*:*:*:*:*r4.01.00 – r4.02.00; r5.01.00 – r5.04.20; r6.01.00VulnerableYokogawa Electric Corporation
cpe:2.3:a:yokogawa:exaopc:*:*:*:*:*:*:*:*r1.01.00 – r1.20.00; r2.01.00 – r2.10.00; r3.01.00VulnerableYokogawa Electric Corporation

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-26593
  2. 2026-10-03 Alias added: GHSA-hfx7-v8g3-wm7q

References

Advisory 2

  • TI-2014-03162 Stack-based buffer overflow in BKFSim_vhfd.exe in Yokogawa CENTUM CS 1000, CENTUM CS 3000… CVSS 2.0HIGH 8.3
  • TI-2014-00728 Yokogawa CENTUM CS 3000 Stack-based Buffer Overflow CVSS 2.0HIGH 8.3
  • TI-2022-09520 Improper authentication in Yokogawa Electric Corporation CENTUM VP series with VP6E5000… CVSS 3.1CRITICAL 9.1
  • TI-2022-12843 Violation of secure design principles exists in the communication of CAMS for HIS. CVSS 3.1HIGH 8.8
  • TI-2018-11593 Improper input validation in Yokogawa Electric Corporation Multiple Yokogawa products… CVSS 3.0HIGH 7.5
  • TI-2022-10311 OS command injection in Yokogawa Electric Corporation CENTUM VP series with VP6E5150… CVSS 3.1HIGH 7.8
See all 7 →

Sources

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