PatchTheCVECVE-2022-25163: Improper Input Validation vulnerability in Mitsubishi Electric MELSEC-Q Series QJ71E71-100 first 5 digits of s
CVE-2022-25163 is a critical-severity flaw (CVSS 9.8) affecting melsec iq-r rd81mes96n firmware, melsec qj71e71-100 firmware, melsec lj71e71-100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Improper Input Validation vulnerability in Mitsubishi Electric MELSEC-Q Series QJ71E71-100 first 5 digits of serial number "24061" or prior, Mitsubishi Electric MELSEC-L series LJ71E71-100 first 5 digits of serial number "24061" or prior and Mitsubishi Electric MELSEC iQ-R Series RD81MES96N firmware version "08" or prior allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on the target p
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.3% (top 17%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2022-06-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-25163?
melsec iq-r rd81mes96n firmware: upgrade to 09; melsec qj71e71-100 firmware: upgrade to 24062; melsec lj71e71-100 firmware: upgrade to 24062. Exact commands for each OS are on this page.
Is CVE-2022-25163 being exploited?
CVE-2022-25163 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-25163 affect?
CVE-2022-25163 affects melsec iq-r rd81mes96n firmware, melsec qj71e71-100 firmware, melsec lj71e71-100 firmware. Severity is critical (CVSS 9.8). Improper Input Validation vulnerability in Mitsubishi Electric MELSEC-Q Series QJ71E71-100 first 5 digits of serial number "24061" or prior, Mitsubishi Electric MELSEC-L series LJ71E71-100 first 5 digits of serial number "24061" or prior an
How urgent is CVE-2022-25163?
Priority 60/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
Mitsubishi Electric vulnerabilities