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Product: r00cpu_firmware, version: <= 1.042

CVE-2022-40267

Severity: MEDIUM

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.

CVSS Score: 5.9

Affected Products:

  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ES - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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 - Versions: 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: versions 1.280 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS-TS - Versions: versions 1.280 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MR/DS-TS - Versions: versions 1.280 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R00CPU - Versions: versions 33 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R01CPU - Versions: versions 33 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R02CPU - Versions: versions 33 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R04CPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R08CPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R16CPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R32CPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R120CPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R04ENCPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R08ENCPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R16ENCPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R32ENCPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-R Series R120ENCPU - Versions: versions 66 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ES - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ES - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/ES - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/ES - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/ES - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ESS - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ESS - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ESS - Versions: 1.042 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES-A - Versions: 1.043 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ES-A - Versions: 1.043 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ES-A - Versions: 1.043 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/ES-A - Versions: 1.043 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/ES-A - Versions: 1.043 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/ES-A - Versions: 1.043 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MT/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MR/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MR/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MR/ES - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/ESS - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/ESS - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/ESS - Versions: 1.003 and prior
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MT/ESS - Versions: 1.003 and prior

References: