Stack-based buffer overflow in ICS-CERT Delta Industrial Automation COMMGR and…
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 3.0 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Delta Industrial Automation COMMGR from Delta Electronics versions 1.08 and prior with accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM_5x0, AHSIM_5x1) utilize a fixed-length stack buffer where an unverified length value can be read from the network packets via a specific network port, causing the buffer to be overwritten. This may allow remote code execution, cause the application to crash, or result in a denial-of-service condition in the application server.
Why it matters now
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 |
|---|---|---|---|---|---|
| ICS-CERT | Delta Industrial Automation COMMGR and accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM_5x0, AHSIM_5x1) | up to 1.08 | — | No fix listed | CNA |
- Delta Industrial Automation COMMGR and accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM_5x0, AHSIM_5x1) VendorICS-CERT Affected up to 1.08 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:deltaww:commgr:*:*:*:*:*:*:*:* | up to 1.08 | Vulnerable | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_ahsim_5x0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_ahsim_5x1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_eh2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_es2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_h3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_se:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
| cpe:2.3:h:deltaww:dvpsimulator_ss2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | deltaww |
- cpe:2.3:a:deltaww:commgr:*:*:*:*:*:*:*:* Versions up to 1.08 Vulnerable ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_ahsim_5x0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_ahsim_5x1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_eh2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_es2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_h3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_se:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
- cpe:2.3:h:deltaww:dvpsimulator_ss2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·deltaww
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-10594
- 2026-10-03 Alias added: GHSA-55m9-57p9-8j6r
References
Sources
- CVE-2018-10594 · CVE Program
- CVE-2018-10594 · NVD
- FIRST EPSS
- GHSA-55m9-57p9-8j6r · GitHub Advisory Database · CC BY 4.0
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