Description
Predictable Seed in Pseudo-Random Number Generator (PRNG) vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-xMy/z (x=32,64,80, y=T,R, z=ES,DS,ESS,DSS) with serial number 17X**** or later, and versions 1.280 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-xMy/z (x=32,64,80, y=T,R, z=ES,DS,ESS,DSS) with serial number 179**** and prior, and versions 1.074 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-xMy/z (x=32,64,96, y=T, z=D,DSS)) with serial number 17X**** or later, and versions 1.280 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-xMy/z (x=32,64,96, y=T, z=D,DSS)) with serial number 179**** and prior, and versions 1.074 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DS-TS versions 1.280 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS-TS versions 1.280 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-xMy/z (x=24,40,60, y=T,R, z=ES,ESS) versions 1.042 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-xMy/ES-A (x=24,40,60, y=T,R) versions 1.043 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-xMy/z (x=30,40,60,80, y=T,R, z=ES,ESS) versions 1.003 and prior, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MR/DS-TS versions 1.280 and prior, Mitsubishi Electric Corporation MELSEC iQ-R Series R00/01/02CPU versions 33 and prior, Mitsubishi Electric Corporation MELSEC iQ-R Series R04/08/16/32/120(EN)CPU versions 66 and prior allows a remote unauthenticated attacker to access the Web server function by guessing the random numbers used for authentication from several used random numbers.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-32MT/ES | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-64MT/ES | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Seres FX5U-80MT/ES | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-32MR/ES | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-64MR/ES | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-80MR/ES | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-32MT/DS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-64MT/DS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-80MT/DS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-32MR/DS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-64MR/DS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-80MR/DS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-32MT/ESS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-64MT/ESS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-80MT/ESS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-32MT/DSS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-64MT/DSS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5U-80MT/DSS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-32MT/D | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-64MT/D | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-96MT/D | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-32MT/DSS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-64MT/DSS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-96MT/DSS | serial number 17X**** or later, and versions 1.280 and prior; serial number 179**** and prior, and versions 1.074 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-32MT/DS-TS | versions 1.280 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-32MT/DSS-TS | versions 1.280 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UC-32MR/DS-TS | versions 1.280 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R00CPU | versions 33 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R01CPU | versions 33 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R02CPU | versions 33 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R04CPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R08CPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R16CPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R32CPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R120CPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R04ENCPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R08ENCPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R16ENCPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R32ENCPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R120ENCPU | versions 66 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-24MT/ES | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-40MT/ES | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-60MT/ES | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-24MR/ES | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-40MR/ES | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-60MR/ES | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-24MT/ESS | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-40MT/ESS | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-60MT/ESS | 1.042 and prior |
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5UJ-24MT/ES-A | 1.043 and prior |
References
- https://jvn.jp/vu/JVNVU99673580/index.htmlMitigation, Third Party Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-23-017-02Mitigation, Third Party Advisory, US Government Resource
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-019_en.pdfMitigation, Vendor Advisory
- https://jvn.jp/vu/JVNVU99673580/index.htmlMitigation, Third Party Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-23-017-02Mitigation, Third Party Advisory, US Government Resource
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-019_en.pdfMitigation, Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1646
Timeline
- Published
- Jan 20, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified