No exploitation reportedFix available

CVE-2022-26034

No exploitation reported by the sources we read.

Published2022-04-15
WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Improper authentication vulnerability in the communication protocol provided by AD (Automation Design) server of CENTUM VP R6.01.10 to R6.09.00, CENTUM VP Small R6.01.10 to R6.09.00, CENTUM VP Basic R6.01.10 to R6.09.00, and B/M9000 VP R8.01.01 to R8.03.01 allows an attacker to use the functions provided by AD server. This may lead to leakage or tampering of data managed by AD server.

Timeline

dates in UTC

2022-04-1502:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-26034?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-26034?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Yokogawa centum vp

Branch	Affected	Fixed in	Source
—	≥ r6.01.10, ≤ r6.09.00	no fix published	NVD
—	≥ r6.01.10, ≤ r06.09.00	no fix published	NVD

Yokogawa b\/m9000 vp

Branch	Affected	Fixed in	Source
—	≥ r8.01.01, ≤ r8.03.01	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-123-01 CISA6 known affected
Yokogawa CENTUM and ProSafe-RS
B/M9000 VP: R6.01.01 through R6.03.02 · B/M9000 VP: R8.01.01 through R8.03.01 · CENTUM VP (Including CENTUM VP Entry Class): R6.01.10 through R6.09.00 - (if VP6E5000 is installed) · +3 more

Full record on NVD

Fix

Vendor fix CISA ICSA-22-123-01 · 6 productsUsers of Prosafe-RS: Update to R4.07.02 or later
Mitigation from the vendor CISA ICSA-22-123-01 · 6 productsUsers of CENTUM Versions R6.01.10 through R6.09.00: Update to R6.09.00 and apply patch software (R6.09.04). In an environment where the AD server and Plant Resource Manager (PRM) are linked, there are some precautions to be taken when applying patch software (R6.09.04). Please be sure to check R6.0…
Mitigation from the vendor CISA ICSA-22-123-01 · 6 productsUsers of CENTUM Versions R4.01.00 though R4.03.00: No patch software will be available because these products are no longer supported by the vendor.
Mitigation from the vendor CISA ICSA-22-123-01 · 6 productsB/M9000 VP: This product is not affected by these vulnerabilities. However, this product is affected by the existence of CENTUM installed on the same PC. If CENTUM is installed, perform update, and update B/M9000 to suitable revision.
Mitigation from the vendor CISA ICSA-22-123-01 · 6 productsThe environment where both CENTUM VP and ProSafe-RS are installed.
Mitigation from the vendor CISA ICSA-22-123-01 · 6 productsThe environment where CENTUM VP's AD server and PRM are linked.

Advisories and patches

www.yokogawa.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.1read 2026-10-23
NVDCVSS 2.05.8read 2026-10-23
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score1.0 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published: 2022-04-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-26034?

Is CVE-2022-26034 actively exploited?

Active exploitation of CVE-2022-26034 has not been confirmed. Its EPSS score was 1.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-26034?

CVE-2022-26034 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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