Stack-based buffer overflow in FATEK Automation Communication Server
Priority MEDIUM 46CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
FATEK Automation Communication Server Versions 1.13 and prior lacks proper validation of user-supplied data, which could result in a stack-based buffer overflow condition and allow an attacker to remotely execute code.
Why it matters now
EPSS 0.0187 79th percentileScored 2026-11-07
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 |
|---|---|---|---|---|---|
| FATEK Automation | Communication Server | All – 1.13 | — | No fix listed | CNA |
- Communication Server VendorFATEK Automation Affected All – 1.13 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fatek:communication_server_firmware:*:*:*:*:*:*:*:* | up to 1.13 | Vulnerable | FATEK Automation |
| cpe:2.3:h:fatek:communication_server:-:*:*:*:*:*:*:* | not specified by NVD | Running on | FATEK Automation |
- cpe:2.3:o:fatek:communication_server_firmware:*:*:*:*:*:*:*:* Versions up to 1.13 Vulnerable ·FATEK Automation
- cpe:2.3:h:fatek:communication_server:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·FATEK Automation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-38432
- 2026-10-03 Alias added: GHSA-2qjg-mr5r-c2hw
References
Sources
- CVE-2021-38432 · CVE Program
- CVE-2021-38432 · NVD
- FIRST EPSS
- GHSA-2qjg-mr5r-c2hw · 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