High severity · published Apr 15, 2022
CVE-2022-21159
A denial of service vulnerability exists in the parseNormalModeParameters functionality of MZ Automation GmbH libiec61850 1.5.0
7.5
CVSS
1.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libiec61850 · Mz-automation
1.5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-21159
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-21159
Patch
https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ee2e8387a0721
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467
Exploit
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467
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