Security readout for executives and security teams
Plain-English summary
This vulnerability can let an unauthenticated network attacker disrupt affected Siemens industrial devices by exhausting resources through their web server. The business risk is loss of availability for automation or drive infrastructure, not data theft. The source bundle does not show confirmed active exploitation.
Executive priority
Treat as high priority for sites using affected Siemens automation or drive products, especially where device web servers are reachable beyond tightly controlled OT segments. The main business concern is operational downtime.
Technical view
Affected Siemens SIMATIC, SIPLUS, and SINAMICS products incorrectly handle HTTP(S) requests to the device web server. The issue is classified as CWE-674 and can cause resource exhaustion leading to denial of service. CVSS 3.1 is 7.5 with network attack vector, low complexity, no privileges, and high availability impact.
Likely exposure
Exposure is most likely where affected Siemens device web servers are reachable from OT networks or routed enterprise segments. Internet exposure would increase urgency, but the source bundle does not state that internet exposure is common or required.
Exploitation context
The CVSS vector indicates unauthenticated network exploitation with low complexity and no user interaction. Siemens/CVE sources describe proof-of-concept exploit maturity, but CISA KEV is false and the bundle provides no evidence of active exploitation.
Researcher notes
The bundle supports denial of service via malformed or excessive HTTP(S) handling but does not include exploit mechanics, affected configurations, or fixed versions for every product. Avoid assuming compromise impact beyond availability loss.
Mitigation direction
- Upgrade SINAMICS S120 to V5.2 SP3 HF15 or later where applicable.
- For all-version SIMATIC/SIPLUS entries, review Siemens SSA-892915 for product-specific guidance.
- Inventory affected web-server-enabled Siemens assets across OT and routed networks.
- Prioritize reducing unnecessary HTTP(S) reachability to affected device web servers.
- Plan maintenance windows because remediation may affect industrial operations.
Validation and detection
- Identify deployed products and firmware versions against the affected Siemens product list.
- Confirm whether HTTP(S) web interfaces are reachable from non-OT networks.
- Check SINAMICS S120 versions for releases earlier than V5.2 SP3 HF15.
- Review monitoring for unexplained device resource exhaustion or availability loss.
- Document any products listed as all versions and track Siemens advisory updates.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-674: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-47374 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/pdf/ssa-892915.pdfCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.