# Denial-of-Service Vulnerability in Ethernet port of MELSEC iQ-R, iQ-L Series and MELIPC Series CVE record · `CVE-2022-33324` - **Identifiers:** `CVE-2022-33324` - **State:** Confirmed - **Severity:** CVSS 7.5 High - **Critical:** No - **CNA:** Mitsubishi - **Weakness (CWE):** [CWE-404](https://cwe.mitre.org/data/definitions/404.html) - **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md) - **Technologies:** [Mitsubishi Electric Corporation MELSEC iQ-R Series R00CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r00cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R01CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r01cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R02CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r02cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R04CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r04cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R08CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r08cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R16CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r16cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R32CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r32cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R120CPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r120cpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R04ENCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r04encpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R08ENCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r08encpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R16ENCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r16encpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R32ENCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r32encpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R120ENCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r120encpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R08SFCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r08sfcpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R16SFCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r16sfcpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R32SFCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r32sfcpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R120SFCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r120sfcpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-R Series R12CCPU-V](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-r-series-r12ccpu-v.md) · [Mitsubishi Electric Corporation MELSEC iQ-L Series L04HCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-l-series-l04hcpu.md) · [Mitsubishi Electric Corporation MELSEC iQ-L Series L08HCPU](https://agentprime.io/advisories/technology/mitsubishi-electric-corporation-melsec-iq-l-series-l08hcpu.md) - **Published:** 23 Dec 2022 - **Updated:** 5 Sept 2024 - **Reviewed by a person:** No Published by the CVE Program (CNA: Mitsubishi) at 23 Dec 2022, 02:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R00CPU. - affected: `Firmware versions "32" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R01CPU. - affected: `Firmware versions "32" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R02CPU. - affected: `Firmware versions "32" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R04CPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R08CPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R16CPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R32CPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R120CPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R04ENCPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R08ENCPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R16ENCPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R32ENCPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R120ENCPU. - affected: `Firmware versions "65" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R08SFCPU. - affected: `Firmware versions "29" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R16SFCPU. - affected: `Firmware versions "29" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R32SFCPU. - affected: `Firmware versions "29" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R120SFCPU. - affected: `Firmware versions "29" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R12CCPU-V. - affected: `Firmware versions "17" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-L Series L04HCPU. - affected: `Firmware versions "05" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-L Series L08HCPU. - affected: `Firmware versions "05" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-L Series L16HCPU. - affected: `Firmware versions "05" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-L Series L32HCPU. - affected: `Firmware versions "05" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELIPC Series MI5122-VW. - affected: `Firmware versions "07" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R08PSFCPU. - affected: `Firmware versions "08" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R16PSFCPU. - affected: `Firmware versions "08" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R32PSFCPU. - affected: `Firmware versions "08" and prior` - Other versions: unaffected - Vendor: Mitsubishi Electric Corporation. Product: MELSEC iQ-R Series R120PSFCPU. - affected: `Firmware versions "08" and prior` - Other versions: unaffected ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (Mitsubishi) - **CISA KEV:** Not listed. - **EPSS:** 0.018, the 78th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 23 Dec 2022. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2022-33324](https://www.cve.org/CVERecord?id=CVE-2022-33324) - [NVD: CVE-2022-33324](https://nvd.nist.gov/vuln/detail/CVE-2022-33324) ### References from the CNA - (vendor-advisory) - (government-resource) - (government-resource) Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .