CVE-2022-21159 | BDVDB-2026-174128 Detail

MZ Automationlibiec61850

Description#

A denial of service vulnerability exists in the parseNormalModeParameters functionality of MZ Automation GmbH libiec61850 1.5.0. A specially-crafted series of network requests can lead to denial of service. An attacker can send a sequence of malformed iec61850 messages to trigger this vulnerability.

Impact#

Per CVSS v3.0: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

References#

Exploit#

No public exploit known

History#

Version 12022-04-15Record published in the CVE List.
Version 22025-04-15Most recent update recorded in the CVE List.

Published

Published: 2022-04-15
Last modified: 2025-04-15

Vendor information

Vendor: MZ Automation
Product: libiec61850

All MZ Automation vulnerabilities

Score

7.5 High

EPSS

1.8%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 79.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
1.5.0
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

Not available

CVSS v3.0

7.5 High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).