Vulnerability · Published Apr 15, 2022 · Assigned by talos
CVE-2022-21159
High 7.5
In plain English
A high-severity infinite loop in libiec61850 from MZ Automation GmbH. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities).
Severity (CVSS 3.0)7.5High
Exploit odds (30 days)1.8%top 21.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MZ Automation GmbH | libiec61850 | 1.5.0 |
Weakness: CWE-835 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H