CVE-2022-25159· NVD / CVE Program· CNA Mitsubishi

Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Electri

Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Electric MELSEC iQ-F series FX5UJ CPU all versions, Mitsubishi Electric MELSEC iQ-R series R00/01/02CPU all versions, Mitsubishi Electric MELSEC iQ-R series R04/08/16/32/120(EN)CPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120SFCPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120PCPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120PSFCPU all versions, Mitsubishi Electric MELSEC iQ-R series R16/32/64MTCPU all versions, Mitsubishi Electric MELSEC iQ-R series RJ71C24(-R2/R4) all versions, Mitsubishi Electric MELSEC iQ-R series RJ71EN71 all versions, Mitsubishi Electric MELSEC iQ-R series RJ72GF15-T2 all versions, Mitsubishi Electric MELSEC Q series Q03/04/06/13/26UDVCPU all versions, Mitsubishi Electric MELSEC Q series Q04/06/13/26UDPVCPU all versions, Mitsubishi Electric MELSEC Q series QJ71C24N(-R2/R4) all versions and Mitsubishi Electric MELSEC Q series QJ71E71-100 all versions allows a remote unauthenticated attacker to login to the product by replay attack.

HighCVSS 8.1 · v3.1—No exploit No fix recorded

BDU:2022-02198

Published: Apr 1, 2022
Updated: Jun 17, 2026
EPSS: 2.2% · 81th percentile
CWE: CWE-294

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Action score

Monitor

Low priority for now.

CVSS: 32 / 40 · 8.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.2%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

Vendor	Product	CPE
mitsubishielectric	fx5uc firmware	cpe:2.3:o:mitsubishielectric:fx5uc_firmware
mitsubishielectric	fx5uc	cpe:2.3:h:mitsubishielectric:fx5uc
mitsubishielectric	fx5uc-32mr\/ds-ts firmware	cpe:2.3:o:mitsubishielectric:fx5uc-32mr\/ds-ts_firmware
mitsubishielectric	fx5uc-32mr\/ds-ts	cpe:2.3:h:mitsubishielectric:fx5uc-32mr\/ds-ts
mitsubishielectric	fx5uc-32mt\/d firmware	cpe:2.3:o:mitsubishielectric:fx5uc-32mt\/d_firmware
mitsubishielectric	fx5uc-32mt\/d	cpe:2.3:h:mitsubishielectric:fx5uc-32mt\/d
mitsubishielectric	fx5uc-32mt\/dss firmware	cpe:2.3:o:mitsubishielectric:fx5uc-32mt\/dss_firmware
mitsubishielectric	fx5uc-32mt\/dss	cpe:2.3:h:mitsubishielectric:fx5uc-32mt\/dss
mitsubishielectric	fx5uj-24mr\/es firmware	cpe:2.3:o:mitsubishielectric:fx5uj-24mr\/es_firmware
mitsubishielectric	fx5uj-24mr\/es	cpe:2.3:h:mitsubishielectric:fx5uj-24mr\/es
mitsubishielectric	fx5uj-24mt\/es firmware	cpe:2.3:o:mitsubishielectric:fx5uj-24mt\/es_firmware
mitsubishielectric	fx5uj-24mt\/es	cpe:2.3:h:mitsubishielectric:fx5uj-24mt\/es

and 20 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

mitsubishielectric fx5uc firmwareall versions
mitsubishielectric fx5uc-32mr/ds-ts firmwareall versions
mitsubishielectric fx5uc-32mt/d firmwareall versions
mitsubishielectric fx5uc-32mt/ds-ts firmwareall versions
mitsubishielectric fx5uc-32mt/dss firmwareall versions
mitsubishielectric fx5uc-32mt/dss-ts firmwareall versions
mitsubishielectric fx5uj firmwareall versions
mitsubishielectric fx5uj-24mr/es firmwareall versions
mitsubishielectric fx5uj-24mt/es firmwareall versions
mitsubishielectric fx5uj-24mt/ess firmwareall versions
mitsubishielectric fx5uj-40mr/es firmwareall versions
mitsubishielectric fx5uj-40mt/es firmwareall versions
mitsubishielectric fx5uj-40mt/ess firmwareall versions
mitsubishielectric fx5uj-60mr/es firmwareall versions
mitsubishielectric fx5uj-60mt/es firmwareall versions
mitsubishielectric fx5uj-60mt/ess firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Mitsubishi). Independent of NVD's CPE analysis and usually ahead of it.

n/a Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU; Mitsubishi Electric MELSEC iQ-F series FX5UJ CPU; Mitsubishi Electric MELSEC iQ-R series R00/01/02CPU; Mitsubishi Electric MELSEC iQ-R series R04/08
- Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Electric MELSEC iQ-F series FX5UJ CPU all versions, Mitsubishi Electric MELSEC iQ-R series R00/01/02CPU all versions, Mitsubishi Electric MELSEC iQ-R series R04/08/16/32/120(EN)CPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120SFCPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120PCPU all versions, Mitsubishi Electric MELSEC iQ-R series R08/16/32/120PSFCPU all versions, Mitsubishi Electric MELSEC iQ-R series R16/32/64MTCPU all versions, Mitsubishi Electric MELSEC iQ-R series RJ71C24(-R2/R4) all versions, Mitsubishi Electric MELSEC iQ-R series RJ71EN71 all versions, Mitsubishi Electric MELSEC iQ-R series RJ72GF15-T2 all versions, Mitsubishi Electric MELSEC Q series Q03/04/06/13/26UDVCPU all versions … (+3)affected

Same product

mitsubishielectric: all records

Other highest-scoring records for the same primary product.

CVE-2022-25157Use of Password Hash Instead of Password for Authentication vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions
37Monitor
CVE-2022-25158Cleartext Storage of Sensitive Information vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Elec
36Monitor
CVE-2022-25155Use of Password Hash Instead of Password for Authentication vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions
33Monitor
CVE-2022-25156Use of Weak Hash vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Electric MELSEC iQ-F series FX
32Monitor
CVE-2022-25160Cleartext Storage of Sensitive Information vulnerability in Mitsubishi Electric MELSEC iQ-F series FX5U(C) CPU all versions, Mitsubishi Elec
23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: High
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-294 · Authentication Bypass by Capture-replay

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

We use this product, ask for help

Data sources and verification

CNA: Mitsubishi

CVE.org (CNA)Aug 3, 2024, 4:29 AM UTC
NVDJun 17, 2026, 12:33 AM UTC
FIRST EPSSSep 29, 2026, 12:00 AM UTC

Each line is when that source was last processed for this record.

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