01 Record
CVE-2022-40267
Authentication Bypass Vulnerability in Web Server Function on MELSEC Series
MediumPUBLISHEDCNA: Mitsubishi
CNA base score5.9 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
02 Description
Authentication Bypass Vulnerability in Web Server Function on MELSEC Series
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.18% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 67.1% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-01-20 07:52Z3 YR AGO
- Last updated
- 2024-08-03 12:14Z2 YR AGO
- Reserved
- 2022-09-08
- Assigning CNA
- Mitsubishi
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- Data version
- 5.1
- Document digest
- d2d25732f2fffe80bdf5c59d4dd3e2ae405c7dc70ecf54e95c28a67753400322
05 Affected products
VendorProductVersionsPlatforms
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/ESserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/ESserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Seres FX5U-80MT/ESserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MR/ESserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MR/ESserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MR/ESserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/DSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/DSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/DSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MR/DSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MR/DSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MR/DSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/ESSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/ESSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/ESSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-32MT/DSSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-64MT/DSSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5U-80MT/DSSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-32MT/Dserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-64MT/Dserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-96MT/Dserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-32MT/DSSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-64MT/DSSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
Mitsubishi Electric CorporationMELSEC iQ-F Series FX5UC-96MT/DSSserial number 17X**** or later, and versions 1.280 and prior, serial number 179**** and prior, and versions 1.074 and prior—
60 further entries not shown. The complete list is in the raw JSON document.
06 References
- www.mitsubishielectric.comhttps://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-019_en.pdf
- jvn.jphttps://jvn.jp/vu/JVNVU99673580/index.html
- www.cisa.govhttps://www.cisa.gov/uscert/ics/advisories/icsa-23-017-02
- www.talosintelligence.comhttps://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1646