Home/CVE/Improper Resource Locking vulnerability in Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V firmware versions "16" and p
CVE

CVE-2022-24946

Improper Resource Locking vulnerability in Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V firmware versions "16" and p

Improper Resource Locking vulnerability in Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V firmware versions "16" and prior, Mitsubishi Electric MELSEC-Q Series Q03UDECPU the first 5 digits of serial No. "24061" and prior, Mitsubishi Electric MELSEC-Q Series Q04/06/10/13/20/26/50/100UDEHCPU the first 5 digits of serial No. "24061" and prior, Mitsubishi Electric MELSEC-Q Series Q03/04/06/13/26UDVCPU the first 5 digits of serial number "24051" and prior, Mitsubishi Electric MELSEC-Q Series Q04/06/13/26UDPVCPU the first 5 digits of serial number "24051" and prior, Mitsubishi Electric MELSEC-Q Series Q12DCCPU-V all versions, Mitsubishi Electric MELSEC-Q Series Q24DHCCPU-V(G) all versions, Mitsubishi Electric MELSEC-Q Series Q24/26DHCCPU-LS all versions, Mitsubishi Electric MELSEC-L series L02/06/26CPU(-P) the first 5 digits of serial number "24051" and prior, Mitsubishi Electric MELSEC-L series L26CPU-(P)BT the first 5 digits of serial number "24051" and prior and Mitsubishi Electric MELIPC Series MI5122-VW firmware versions "05" and prior allows a remote unauthenticated attacker to cause a denial of service (DoS) condition in Ethernet communications by sending specially crafted packets. A system reset of the products is required for recovery.

HIGH · CVSS 7.5 EPSS 0.00444
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-667Improper Locking
▤

Affected Products & Versions

32
mitsubishielectric q03udecpu firmwareall versions
mitsubishielectric q04udehcpu firmwareall versions
mitsubishielectric q04udpvcpu firmwareall versions
mitsubishielectric q04udvcpu firmwareall versions
mitsubishielectric q100udehcpu firmwareall versions
mitsubishielectric q50udehcpu firmwareall versions
mitsubishielectric q26dhccpu-ls firmwareall versions
mitsubishielectric q26udehcpu firmwareall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Jun 2022 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2022-icsa-22-172-01
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jvn.jp/vu/JVNVU90895626/index.htmlThird Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-172-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-007_en.pdfVendor Advisory
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