Stack-based buffer overflow in Real Time Automation 499ES EtherNet/IP Adaptor Source Code
Priority MEDIUM 48CWE-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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
499ES EtherNet/IP (ENIP) Adaptor Source Code is vulnerable to a stack-based buffer overflow, which may allow an attacker to send a specially crafted packet that may result in a denial-of-service condition or code execution.
Why it matters now
EPSS 0.03026 87th percentileScored 2026-11-07
Fix Fixed 499ES EtherNet/IP (ENIP) Adaptor Source Code (Real Time Automation): 2.28
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 |
|---|---|---|---|---|---|
| Real Time Automation | 499ES EtherNet/IP (ENIP) Adaptor Source Code | before 2.28 | 2.28 | Patch available | CNA |
- 499ES EtherNet/IP (ENIP) Adaptor Source Code VendorReal Time Automation Affected before 2.28 Fixed in 2.28 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:rtautomation:499es_ethernet\/ip_adaptor_firmware:*:*:*:*:*:*:*:* | before 2.28 | Vulnerable | Rtautomation |
| cpe:2.3:h:rtautomation:499es_ethernet\/ip_adaptor:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Rtautomation |
- cpe:2.3:o:rtautomation:499es_ethernet\/ip_adaptor_firmware:*:*:*:*:*:*:*:* Versions before 2.28 Vulnerable ·Rtautomation
- cpe:2.3:h:rtautomation:499es_ethernet\/ip_adaptor:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rtautomation
Remediation
- Fix · CNA 499ES EtherNet/IP (ENIP) Adaptor Source Code (Real Time Automation) Fixed in 2.28
Timeline
- 2026-10-02 Threatist record created from CVE-2020-25159
- 2026-10-03 Alias added: GHSA-mxg2-jj7m-q6v8
References
Sources
- CVE-2020-25159 · CVE Program
- CVE-2020-25159 · NVD
- FIRST EPSS
- GHSA-mxg2-jj7m-q6v8 · GitHub Advisory Database · CC BY 4.0
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