No exploitation reported

CVE-2022-33323

No exploitation reported by the sources we read.

Published2023-02-02
WeaknessCWE-489

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

Active Debug Code vulnerability in robot controller of Mitsubishi Electric Corporation industrial robot MELFA SD/SQ Series and MELFA F-Series allows a remote unauthenticated attacker to gain unauthorized access by authentication bypass through an unauthorized telnet login. As for the affected model names, controller types and firmware versions, see the Mitsubishi Electric's advisory which is listed in [References] section.

Timeline

dates in UTC

2023-02-0206:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 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-2022-33323?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-33323?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Mitsubishielectric rh-12fh55 firmwareversion to verify

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

Mitsubishielectric rh-12fh70 firmwareversion to verify

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

Mitsubishielectric rh-12fh85 firmwareversion to verify

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

48 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-23-026-05 CISA4 known affected
Mitsubishi Electric MELFA SD/SQ series and F-series Robot Controllers
MELFA SD/SQ series and F-series Robot Controllers: MELFA SD/SQ Series: firmware version S7x and prior · MELFA SD/SQ series and F-series Robot Controllers: MELFA SD/SQ Series: firmware version R7x and prior · MELFA SD/SQ series and F-series Robot Controllers: MELFA F-Series: firmware version S7x and prior · +1 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-23-026-05 · 4 productsMELFA SD/SQ Series: Update to firmware version S7y or later
Mitigation from the vendor CISA ICSA-23-026-05 · 4 productsMELFA SD/SQ Series: Update to firmware version R7y or later
Mitigation from the vendor CISA ICSA-23-026-05 · 4 productsMELFA F-Series: Update to firmware version S7y or later
Mitigation from the vendor CISA ICSA-23-026-05 · 4 productsMELFA F-Series: Update to firmware version R7y or later
Mitigation from the vendor CISA ICSA-23-026-05 · 4 productsUse a firewall or virtual private network (VPN), etc. to prevent unauthorized access when internet access is required.
Mitigation from the vendor CISA ICSA-23-026-05 · 4 productsUse affected products within a local area network (LAN) and block access from untrusted networks and hosts through firewalls.

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 decisionnone2025-03-26
OpenCVESSVC decisionnone—
CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-489read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: 2023-02-02
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-33323?

Is CVE-2022-33323 actively exploited?

Active exploitation of CVE-2022-33323 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-33323?

CVE-2022-33323 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:H/A:N.

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