CyberSecBulletin
CVE-2022-33319NVD status: Modified

GENESIS64: Out-of-bounds Read

Published Updated By the CyberSecBulletin desk

CVE-2022-33319 is a critical-severity out-of-bounds read vulnerability in GENESIS64 from Mitsubishi Electric, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected GENESIS64 versions: Versions 10.97 to 10.97.1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.72% chance of exploitation within 30 days, higher than 78% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of GENESIS64 you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on mitsubishielectric.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Mitsubishi ElectricGENESIS64Versions 10.97 to 10.97.1Not stated
Mitsubishi Electric Iconics Digital SolutionsGENESIS64Versions 10.97 to 10.97.1Not stated
Mitsubishi ElectricICONICS SuiteVersions 10.97 to 10.97.1Not stated
Mitsubishi Electric Iconics Digital SolutionsICONICS SuiteVersions 10.97 to 10.97.1Not stated
Mitsubishi ElectricGENESIS32Versions 9.7 and priorNot stated
Mitsubishi Electric Iconics Digital SolutionsGENESIS32Versions 9.7 and priorNot stated
Mitsubishi ElectricMC Works64Versions 4.04E and priorNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.18.2HighCNA (yd.MitsubishiElectric.co.jp)
CVSS 3.19.1CriticalNVD

Official description

Out-of-bounds Read vulnerability in Mitsubishi Electric GENESIS64 versions 10.97 to 10.97.1, Mitsubishi Electric Iconics Digital Solutions GENESIS64 versions 10.97 to 10.97.1, Mitsubishi Electric ICONICS Suite versions 10.97 to 10.97.1, Mitsubishi Electric Iconics Digital Solutions ICONICS Suite versions 10.97 to 10.97.1, Mitsubishi Electric GENESIS32 versions 9.7 and prior, Mitsubishi Electric Iconics Digital Solutions GENESIS32 versions 9.7 and prior, and Mitsubishi Electric MC Works64 versions 4.04E and prior allows a remote unauthenticated attacker to disclose information on memory or cause a Denial of Service (DoS) condition by sending specially crafted packets to the GENESIS64, ICONICS Suite, GENESIS32, or MC Works64 server.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

How developers prevent this class of flaw

  • Use a language that provides appropriate memory abstractions.

More Out-of-bounds Read vulnerabilities (CWE-125)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in GENESIS64

All GENESIS64 vulnerabilities

Recent Out-of-bounds Read vulnerabilities

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