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CVE-2022-2973

MZ Automation libIEC61850 NULL Pointer Dereference

HIGH
7.5
CVSS Score
Published: September 23, 2022 at 03:28 PM UTC
Updated: June 17, 2026 at 04:42 AM UTC
2 products affected across 1 vendorLIBIEC61850Automation LIBIEC61850

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit a3b04b7bc4872a5a39e5de3fdc5fbde52c09e10e) uses a NULL pointer in certain situations. which could allow an attacker to crash the server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

LIBIEC61850· Mz Automation
95%
v < 1.5.0
Affected range stops below 1.5.0, so it looks safe — our inference, not a vendor statement
Automation LIBIEC61850· Mz Automation
75%
v ≤ 1.4v < 1.5.01.5
Affected range stops below 1.5.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.cisa.gov/uscert/ics/advisories/icsa-22-251-01

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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