Path traversal in Siemens SIMATIC eaSie PCS 7 Skill Package
Priority LOW 31CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
A vulnerability has been identified in SIMATIC eaSie PCS 7 Skill Package (All versions < V21.00 SP3). When downloading files, the affected systems do not properly neutralize special elements within the pathname. An attacker could then cause the pathname to resolve to a location outside of the restricted directory on the server and read unexpected critical files. The affected file download function is disabled by default.
Why it matters now
EPSS 0.0094 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 | SIMATIC eaSie PCS 7 Skill Package | All versions < V21.00 SP3 | — | No fix listed | CNA |
- SIMATIC eaSie PCS 7 Skill Package VendorSiemens Affected All versions < V21.00 SP3 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:*:*:*:*:*:*:*:* | up to 20.07 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:-:*:*:*:*:*:* | 21.00 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:sp1:*:*:*:*:*:* | 21.00 sp1 | Vulnerable | Siemens |
| cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:sp2:*:*:*:*:*:* | 21.00 sp2 | Vulnerable | Siemens |
- cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:*:*:*:*:*:*:*:* Versions up to 20.07 Vulnerable ·Siemens
- cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:-:*:*:*:*:*:* Versions 21.00 Vulnerable ·Siemens
- cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:sp1:*:*:*:*:*:* Versions 21.00 sp1 Vulnerable ·Siemens
- cpe:2.3:a:siemens:simatic_easie_pcs_7_skill:21.00:sp2:*:*:*:*:*:* Versions 21.00 sp2 Vulnerable ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-42022
- 2026-10-03 Alias added: GHSA-p462-h5xx-px29
References
Sources
- CVE-2021-42022 · CVE Program
- CVE-2021-42022 · NVD
- FIRST EPSS
- GHSA-p462-h5xx-px29 · GitHub Advisory Database · CC BY 4.0
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