A vulnerability has been identified in SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1)…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-248.
Summary
A vulnerability has been identified in SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1), SINUMERIK 840D sl V4.7 (All versions < V4.7 SP6 HF5), SINUMERIK 840D sl V4.8 (All versions < V4.8 SP3). The integrated VNC server on port 5900/tcp of the affected products could allow a remote attacker to cause a Denial-of-Service condition of the VNC server. Please note that this vulnerability is only exploitable if port 5900/tcp is manually opened in the firewall configuration of network port X130. The security vulnerability could be exploited by an attacker with network access to the affected devices and port. Successful exploitation requires no privileges and no user interaction. The vulnerability could allow an attacker to compromise availability of the VNC server. At the time of advisory publication no public exploitation of this security vulnerability was known.
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 |
|---|---|---|---|---|---|
| Siemens | SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8 | SINUMERIK 828D V4.7 : All versions < V4.7 SP6 HF1; SINUMERIK 840D sl V4.7 : All versions < V4.7 SP6 HF5; SINUMERIK 840D sl V4.8 : All versions < V4.8 SP3 | — | No fix listed | CNA |
- SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8 VendorSiemens Affected SINUMERIK 828D V4.7 : All versions < V4.7 SP6 HF1; SINUMERIK 840D sl V4.7 : All versions < V4.7 SP6 HF5; SINUMERIK 840D sl V4.8 : All versions < V4.8 SP3 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:sinumerik_828d_firmware:*:*:*:*:*:*:*:* | up to 4.7 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_828d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sinumerik_840d_sl_firmware:*:*:*:*:*:*:*:* | up to 4.7 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_840d_sl:*:*:*:*:*:*:*:* | all versions | Running on | Siemens |
| cpe:2.3:o:siemens:sinumerik_840d_sl_firmware:*:*:*:*:*:*:*:* | up to 4.8 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_840d_sl:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:sinumerik_828d_firmware:*:*:*:*:*:*:*:* Versions up to 4.7 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_828d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sinumerik_840d_sl_firmware:*:*:*:*:*:*:*:* Versions up to 4.7 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_840d_sl:*:*:*:*:*:*:*:* Versions all versions Running on ·Siemens
- cpe:2.3:o:siemens:sinumerik_840d_sl_firmware:*:*:*:*:*:*:*:* Versions up to 4.8 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_840d_sl:-:*:*:*:*:*:*:* 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-2018-11464
- 2026-10-03 Alias added: GHSA-6mj6-g5m3-f7hq
References
More Siemens Sinumerik 828d Firmware vulnerabilities
- TI-2021-15261 Heap-based buffer overflow in Siemens SINUMERIK 808D CVSS 3.1HIGH 7.5
- TI-2017-01922 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 7.1
- TI-2017-01923 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 7.1
- TI-2018-03420 Improper input validation in Siemens SIMATIC S7-400 CPU 414-3 PN/DP V7 CVSS 3.1MEDIUM 6.5
Sources
- CVE-2018-11464 · CVE Program
- CVE-2018-11464 · NVD
- FIRST EPSS
- GHSA-6mj6-g5m3-f7hq · 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