Missing authentication in Siemens SICAM MMU
Priority LOW 34CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.
Summary
A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All versions), SICAM T (All versions < V2.18). An attacker with access to the network could be able to install specially crafted firmware to the device.
Why it matters now
EPSS 0.00826 57th percentileScored 2026-11-07
Fix Fixed SICAM MMU (Siemens AG): V2.05SICAM T (Siemens AG): V2.18
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 MMU | before V2.05 | V2.05 | Patch available | CNA |
| Siemens | SICAM SGU | All versions | — | No fix listed | CNA |
| Siemens | SICAM T | before V2.18 | V2.18 | Patch available | CNA |
- SICAM MMU VendorSiemens Affected before V2.05 Fixed in V2.05 Patch available CNA
- SICAM SGU VendorSiemens Affected All versions Fixed in — No fix listed CNA
- SICAM T VendorSiemens Affected before V2.18 Fixed in V2.18 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:sicam_mmu_firmware:*:*:*:*:*:*:*:* | before 2.05 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_mmu:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sicam_sgu_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_sgu:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:sicam_t_firmware:*:*:*:*:*:*:*:* | before 2.18 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:sicam_t:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:sicam_mmu_firmware:*:*:*:*:*:*:*:* Versions before 2.05 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_mmu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sicam_sgu_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_sgu:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:sicam_t_firmware:*:*:*:*:*:*:*:* Versions before 2.18 Vulnerable ·Siemens
- cpe:2.3:h:siemens:sicam_t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
- Fix · CNA SICAM MMU (Siemens AG) Fixed in V2.05
- Fix · CNA SICAM T (Siemens AG) Fixed in V2.18
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10044
- 2026-10-03 Alias added: GHSA-67rg-fq6q-r5cf
References
More Siemens Sicam Mmu Firmware vulnerabilities
- TI-2020-08101 Buffer overflow in Siemens SICAM MMU CVSS 3.1CRITICAL 9.8
- TI-2020-08097 Missing authentication in Siemens SICAM MMU CVSS 3.1CRITICAL 9.8
- TI-2020-08104 Authentication bypass by capture-replay in Siemens SICAM MMU CVSS 3.1HIGH 8.8
- TI-2020-08098 A vulnerability has been identified in SICAM MMU (All versions < V2.05), SICAM SGU (All… CVSS 3.1HIGH 8.1
- TI-2020-08096 Out-of-bounds read in Siemens SICAM MMU CVSS 3.1HIGH 7.5
- TI-2020-08100 Cross-site scripting in Siemens SICAM MMU CVSS 3.1MEDIUM 6.1
Sources
- CVE-2020-10044 · CVE Program
- CVE-2020-10044 · NVD
- FIRST EPSS
- GHSA-67rg-fq6q-r5cf · 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