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Fencer Vulns
high 8.6

CVE-2022-25161 json

Improper Input Validation vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U-xMy/z(x=32,64,80, y=T,R, z=ES,DS,ESS,DSS) with seria…

published 2022-05-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-29904

cvss
8.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Improper Input Validation vulnerability in Mitsubishi Electric 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 prior to 1.270, Mitsubishi Electric Mitsubishi Electric 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 prior to 1.073, MELSEC iQ-F series FX5UC-xMy/z(x=32,64,96, y=T,R, z=D,DSS) with serial number 17X**** or later and versions prior to 1.270, Mitsubishi Electric MELSEC iQ-F series FX5UC-xMy/z(x=32,64,96, y=T,R, z=D,DSS) with serial number 179**** and prior and versions prior to 1.073, Mitsubishi Electric MELSEC iQ-F series FX5UC-32MT/DS-TS versions prior to 1.270, Mitsubishi Electric MELSEC iQ-F series FX5UC-32MT/DSS-TS versions prior to 1.270, Mitsubishi Electric MELSEC iQ-F series FX5UC-32MR/DS-TS versions prior to 1.270, Mitsubishi Electric MELSEC iQ-F series FX5UJ-xMy/z(x=24,40,60, y=T,R, z=ES,ESS) versions prior to 1.030, Mitsubishi Electric MELSEC iQ-F series FX5UJ-xMy/ES-A(x=24,40,60, y=T,R) versions prior to 1.031 and Mitsubishi Electric MELSEC iQ-F series FX5S-xMy/z(x=30,40,60,80, y=T,R, z=ES,ESS) version 1.000 allows a remote unauthenticated attacker to cause a DoS condition for the product's program execution or communication by sending specially crafted packets. System reset of the product is required for recovery.

Patch / fix

  • mitsubishielectric melsec_iq-fx5u-32mt/es_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mt/ds_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mt/ess_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mt/dss_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mr/es_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mr/ds_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mr/ess_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-32mr/dss_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mt/es_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mt/ds_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mt/ess_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mt/dss_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mr/es_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mr/ds_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mr/ess_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-64mr/dss_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-80mt/es_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-80mt/ds_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-80mt/ess_firmware 1.270
  • mitsubishielectric melsec_iq-fx5u-80mt/dss_firmware 1.270

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-139-01 updated cvss 8.6

Mitsubishi Electric MELSEC iQ-F Series

  • Mitsubishi Electric MELSEC iQ-F FX5S-xMy/z x=30,40,60,80, y=T.R, z=ES,ESS 1.000 Mitsubishi Electric MELSEC iQ-F FX5S-xMy/z x=30406080 y=T.R z=ESESS 1.000 (These products are sold in limited regions) Mitsubishi Electric MELSEC iQ-F FX5U-xMy/z x=32,64,80, y=T,R, z=ES,DS,ESS,DSS with serial number 17X**** or later < 1.270 Mitsubishi Electric MELSEC iQ-F FX5U-xMy/z x=32,64,80, y=T,R, z=ES,DS,ESS,DSS with Serial number 179**** and prior < 1.073 Mitsubishi Electric MELSEC iQ-F FX5U-xMy/z x=326480 y=TR z=ESDSESSDSS with serial number 17X**** or later < 1.270 Mitsubishi Electric MELSEC iQ-F FX5U-xMy/z x=326480 y=TR z=ESDSESSDSS with Serial number 179**** and prior < 1.073
    +8 more products
    Mitsubishi Electric MELSEC iQ-F FX5UC-32MT/DS-TS FX5UC-32MT/DSS-TS FX5UC-32MR/DS-TS < 1.270 Mitsubishi Electric MELSEC iQ-F FX5UC-xMy/z x=32,64,96, y=T,R, z=D,DSS with serial number 17X**** or later < 1.270 Mitsubishi Electric MELSEC iQ-F FX5UC-xMy/z x=32,64,96, y=T,R, z=D,DSS with Serial number 179**** and prior < 1.073 Mitsubishi Electric MELSEC iQ-F FX5UC-xMy/z x=326496 y=TR z=DDSS with serial number 17X**** or later < 1.270 Mitsubishi Electric MELSEC iQ-F FX5UC-xMy/z x=326496 y=TR z=DDSS with Serial number 179**** and prior < 1.073 Mitsubishi Electric MELSEC iQ-F FX5UJ-xMy/ES-A x=24,40,60, y=T.R < 1.031 Mitsubishi Electric MELSEC iQ-F FX5UJ-xMy/ES-A x=244060 y=T.R < 1.031 (These products are sold in limited regions) Mitsubishi Electric MELSEC iQ-F FX5UJ-xMy/z x=244060 y=TR z=ESESS < 1.030
    affected: mitigation “MELSEC iQ-F FX5U-xMy/z x=32,64,80, y=T,R, z=ES,DS,ESS,DSS with Serial number 17X**** or later update to v1.270 or later” mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

4.29% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • n/a Mitsubishi Electric MELSEC iQ-F series FX5U-xMy/z(x=32,64,80, y=T,R, z=ES,DS,ESS,DSS); Mitsubishi Electric MELSEC iQ-F series FX5UC-xMy/z(x=32,64,96, y=T,R, z=D,DSS); Mitsubishi Electric MELSEC iQ-F series FX5UC-32MT/DS-TS; Mitsubishi Electric MELSEC iQ-F series FX5UC-32MT/DSS-TS; Mitsubishi Electric MELSEC iQ-F series FX5UC-32MR/DS-TS; Mitsubishi Electric MELSEC iQ-F series FX5UJ-xMy/z(x=24,40,60, y=T,R, z=ES,ESS); Mitsubishi Electric MELSEC iQ-F series FX5UJ-xMy/ES-A(x=24,40,60, y=T,R); Mitsubishi Electric MELSEC iQ-F series FX5S-xMy/z(x=30,40,60,80, y=T,R, z=ES,ESS)

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.