VulnerabilityModified
CVE-2022-21159
A denial of service vulnerability exists in the parseNormalModeParameters functionality of MZ Automation GmbH libiec61850 1.5.0.
HIGH 7.5EPSS 1.82%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.82% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- mz-automation/libiec61850
- Source
- talos-cna@cisco.com
References
- https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ee2e8387a0721Patch, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467Exploit, Third Party Advisory
- https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ee2e8387a0721Patch, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2022-1467Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.