An issue was discovered in Siemens ETA4 firmware (all versions prior to Revision 08) of…
Priority LOW 37CWE-19Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
An issue was discovered in Siemens ETA4 firmware (all versions prior to Revision 08) of the SM-2558 extension module for: SICAM AK, SICAM TM 1703, SICAM BC 1703, and SICAM AK 3. Specially crafted packets sent to Port 2404/TCP could cause the affected device to go into defect mode. A cold start might be required to recover the system, a Denial-of-Service Vulnerability.
Why it matters now
EPSS 0.02052 81st 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 |
|---|---|---|---|---|---|
| — | Siemens SICAM RTU Devices before 08 | Siemens SICAM RTU Devices before 08 | — | No fix listed | CNA |
- Siemens SICAM RTU Devices before 08 Vendor— Affected Siemens SICAM RTU Devices before 08 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:eta4_firmware:*:*:*:*:*:*:*:* | up to 07 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_ak:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:h:siemens:sicam_ak_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:h:siemens:sicam_bc_1703:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:h:siemens:sicam_tm_1703:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:eta2_firmware:*:*:*:*:*:*:*:* | up to 11.0 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_bc:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:h:siemens:sicam_tm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:eta4_firmware:*:*:*:*:*:*:*:* Versions up to 07 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_ak:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:h:siemens:sicam_ak_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:h:siemens:sicam_bc_1703:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:h:siemens:sicam_tm_1703:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:eta2_firmware:*:*:*:*:*:*:*:* Versions up to 11.0 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_bc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:h:siemens:sicam_tm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-7987
- 2026-10-03 Alias added: GHSA-q3wf-68hp-39q6
References
Sources
- CVE-2016-7987 · CVE Program
- CVE-2016-7987 · NVD
- FIRST EPSS
- GHSA-q3wf-68hp-39q6 · 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