01 Record
CVE-2025-40805
Affected devices do not properly enforce user authentication on specific API endpoints. This could facilitate an unauthenticated remote attacker to circumvent authentication and impersonate a
CriticalPUBLISHEDCNA: siemens
CNA base score10.0 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
02 Description
Affected devices do not properly enforce user authentication on specific API endpoints. This could facilitate an unauthenticated remote attacker to circumvent authentication and impersonate a
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.65% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.9% of scored records. A rank, not a probability.
- NVD base score
- 10.0 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-01-13 09:44Z9 MO AGO
- Last updated
- 2026-05-12 08:20Z5 MO AGO
- Reserved
- 2025-04-16
- Assigning CNA
- siemens
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 10.0)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weaknesses
- CWE-639Authorization Bypass Through User-Controlled KeyBase
- Data version
- 5.2
- Document digest
- 9f7c86585fac892febb54e0c92ea7847e674a3d7fe76687cf694b8b60ee004ca
05 Affected products
VendorProductVersionsPlatforms
SiemensSIMATIC HMI MTP1200 Comfort Pro for support arm (expandable, round tube) and extension unit0 to < V21—
SiemensSIMATIC HMI MTP1200 Comfort Pro neutral design for stand (expandable, flange at the bottom)0 to < V21—
SiemensSIMATIC HMI MTP1200 Comfort Pro neutral design for support arm (expandable, round tube) and extensio0 to < V21—
47 further entries not shown. The complete list is in the raw JSON document.
06 References
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-014678.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-001536.html