No exploitation reportedFix available

CVE-2022-24946

Q: Is CVE-2022-24946 actively exploited?

Active exploitation of CVE-2022-24946 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-24946?

CVE-2022-24946 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2022-06-15
WeaknessCWE-413 · CWE-667

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2022-06-1521:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-24946?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-24946?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Mitsubishielectric l02cpu firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Mitsubishielectric l02cpu-p firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Mitsubishielectric l02scpu firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

29 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-172-01 CISA28 known affected
Mitsubishi Electric MELSEC iQ-R, Q, L Series and MELIPC Series (Update C)
Mitsubishi Electric MELSEC iQ-R Series R12CCPU-V CPU Firmware: <=16 · Mitsubishi Electric MELSEC Q Series Q03UDECPU: <=with_the_first_5_digits_of_serial_number_24061 · Mitsubishi Electric MELSEC Q Series Q04UDECPU: <=with_the_first_5_digits_of_serial_number_24061 · +25 more

Full record on NVD

Fix

Vendor fix CISA ICSA-22-172-01 · 1 productMELSEC Q Series Q03UDECPU: Versions with the first 5 digits of serial No. 24062 and later
Vendor fix CISA ICSA-22-172-01 · 1 productMELSEC Q Series Q04UDECPU: Versions with the first 5 digits of serial No. 24062 and later
Vendor fix CISA ICSA-22-172-01 · 1 productMELSEC Q Series Q06UDECPU: Versions with the first 5 digits of serial No. 24062 and later
Vendor fix CISA ICSA-22-172-01 · 1 productMELSEC Q Series Q10UDECPU: Versions with the first 5 digits of serial No. 24062 and later
Vendor fix CISA ICSA-22-172-01 · 1 productMELSEC Q Series Q13UDECPU: Versions with the first 5 digits of serial No. 24062 and later
Vendor fix CISA ICSA-22-172-01 · 1 productMELSEC Q Series Q20UDECPU: Versions with the first 5 digits of serial No. 24062 and later

Advisories and patches

www.mitsubishielectric.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-06-02
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.52026-06-02
NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-4132026-06-02
NVDweakness (CWE)CWE-667read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2022-06-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-24946?

Is CVE-2022-24946 actively exploited?

Active exploitation of CVE-2022-24946 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-24946?

CVE-2022-24946 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database