CVE-2022-21159

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 v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.0

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

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

1.80% chance of exploitation in the next 30 days, 77th percentile

Published

2022-04-15

Updated

2025-04-15

Proof-of-concept exploits (2)

• https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467

References

• CVE Record
• NVD entry

Related

• CVE-2022-21154
• CVE-2022-2116
• CVE-2022-2115
• CVE-2022-21164
• CVE-2022-21147
• CVE-2022-21165