Access control flaw in Siemens SINUMERIK 808D V4.7, SINUMERIK 808D V4.8, SINUMERIK 828D…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-264.
Summary
A vulnerability has been identified in SINUMERIK 808D V4.7 (All versions), SINUMERIK 808D V4.8 (All versions), 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). By sending a specially crafted authentication request to the affected systems a remote attacker could escalate his privileges to an elevated user account but not to root. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no privileges and no user interaction. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system. 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 808D V4.7, SINUMERIK 808D V4.8, SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8 | SINUMERIK 808D V4.7 : All versions; SINUMERIK 808D V4.8 : All versions; 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 808D V4.7, SINUMERIK 808D V4.8, SINUMERIK 828D V4.7, SINUMERIK 840D sl V4.7, SINUMERIK 840D sl V4.8 VendorSiemens Affected SINUMERIK 808D V4.7 : All versions; SINUMERIK 808D V4.8 : All versions; 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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:sinumerik_808d_v4.7_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_808d_v4.7:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sinumerik_808d_v4.8_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_808d_v4.8:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sinumerik_828d_v4.7_firmware:*:*:*:*:*:*:*:* | up to 4.7 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_828d_v4.7:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sinumerik_840d_sl_v4.7_firmware:*:*:*:*:*:*:*:* | up to 4.7 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_840d_sl_v4.7:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sinumerik_840d_sl_v4.8_firmware:*:*:*:*:*:*:*:* | up to 4.8 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sinumerik_840d_sl_v4.8:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:sinumerik_808d_v4.7_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_808d_v4.7:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sinumerik_808d_v4.8_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_808d_v4.8:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sinumerik_828d_v4.7_firmware:*:*:*:*:*:*:*:* Versions up to 4.7 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_828d_v4.7:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sinumerik_840d_sl_v4.7_firmware:*:*:*:*:*:*:*:* Versions up to 4.7 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_840d_sl_v4.7:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sinumerik_840d_sl_v4.8_firmware:*:*:*:*:*:*:*:* Versions up to 4.8 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sinumerik_840d_sl_v4.8:-:*:*:*:*:*:*:* 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-2018-11462
- 2026-10-03 Alias added: GHSA-mp2x-mrhw-2326
References
More Siemens Sinumerik 808d V4.7 Firmware vulnerabilities
- TI-2018-08191 A vulnerability has been identified in SINUMERIK 808D V4.7 (All versions), SINUMERIK 808D… CVSS 3.0CRITICAL 9.8
- TI-2018-08190 Out-of-bounds read in Siemens SINUMERIK 808D V4.7, SINUMERIK 808D V4.8, SINUMERIK 828D… CVSS 3.0HIGH 7.8
- TI-2018-08188 Stack-based buffer overflow in Siemens SINUMERIK 808D V4.7, SINUMERIK 808D V4.8… CVSS 3.0HIGH 7.8
- TI-2018-08185 Protection mechanism failure in Siemens SINUMERIK 808D V4.7, SINUMERIK 808D V4.8… CVSS 3.0HIGH 7.8
- TI-2018-08184 Protection mechanism failure in Siemens SINUMERIK 808D V4.7, SINUMERIK 808D V4.8… CVSS 3.0HIGH 7.8
- TI-2018-08186 Access control flaw in Siemens SINUMERIK 808D V4.7, SINUMERIK 808D V4.8, SINUMERIK 828D… CVSS 3.0MEDIUM 6.6
Sources
- CVE-2018-11462 · CVE Program
- CVE-2018-11462 · NVD
- FIRST EPSS
- GHSA-mp2x-mrhw-2326 · 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