Reachable assertion in MZ Automation"
Priority LOW 35CWE-617Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-617.
Summary
A denial of service vulnerability exists in the ASDU message processing functionality of MZ Automation GmbH lib60870.NET 2.2.0. A specially crafted network request can lead to loss of communications. An attacker can send an unauthenticated message to trigger this vulnerability.
Why it matters now
EPSS 0.01261 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | MZ Automation" | MZ Automation GmbH lib60870.NET 2.2.0 | — | No fix listed | CNA |
- MZ Automation" Vendor— Affected MZ Automation GmbH lib60870.NET 2.2.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mz-automation:lib60870:2.2.0:*:*:*:*:*:*:* | 2.2.0 | Vulnerable | MZ Automation |
- cpe:2.3:a:mz-automation:lib60870:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·MZ Automation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21778
- 2026-10-03 Alias added: GHSA-f72g-c5hf-789v
References
More MZ Automation Lib60870 vulnerabilities
- TI-2023-09169 An issue was discovered in lib60870 v2.3.2. CVSS 3.1MEDIUM 5.5
- TI-2019-04346 An issue was discovered in lib60870 2.1.1. CVSS 3.0HIGH 7.5
- TI-2021-20834 A NULL pointer dereference in CS104_IPAddress_setFromString at… CVSS 3.1HIGH 7.5
Sources
- CVE-2021-21778 · CVE Program
- CVE-2021-21778 · NVD
- FIRST EPSS
- GHSA-f72g-c5hf-789v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences