CVE-2021-42029
Siemens · published 2022-04-12
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Siemens AG via the CVE Program.
A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) V15 (All versions), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 5), SIMATIC STEP 7 (TIA Portal) V17 (All versions < V17 Update 2). An attacker could achieve privilege escalation on the web server of certain devices due to improper access control vulnerability in the engineering system software. The attacker needs to have direct access to the impacted web server.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC STEP 7 (TIA Portal) V15 | All versions: affected |
| Siemens | SIMATIC STEP 7 (TIA Portal) V16 | All versions < V16 Update 5: affected |
| Siemens | SIMATIC STEP 7 (TIA Portal) V17 | All versions < V17 Update 2: affected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 7.8 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0: 7.2 HIGH — as published by NIST (Primary)
AV:L/AC:L/Au:N/C:C/I:C/A:C
DeSpy does not score records. These are the sources' own values.
Weaknesses
CWE-284, NVD-CWE-Other
Sources
References the source lists
- https://cert-portal.siemens.com/productcert/pdf/ssa-350757.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-350757.pdf
Source dates: published 2022-04-12, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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