CVE-2022-21159

CVSS 7.5 HIGHEPSS 1.7%CWE-835

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 1.7%KEV nãoPoC —Patch —

Lifecycle

15 Apr 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

MZ Automation GmbH · libiec61850

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References

https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ee2e8387a0721 https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467 https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467