A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS…
Priority CRITICAL 92Exploited in the wildPublished · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS NET CP 1543-1 (All versions < V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.
Why it matters now
Exploitation Active In CISA KEV since 2022-03-03CISA due date 2022-03-24
EPSS 0.0361 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:* | before 2.0.28 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_cp_1543-1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:siplus_net_cp_1543-1_firmware:*:*:*:*:*:*:*:* | before 2.0.28 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:siplus_net_cp_1543-1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:* Versions before 2.0.28 Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_cp_1543-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:siplus_net_cp_1543-1_firmware:*:*:*:*:*:*:*:* Versions before 2.0.28 Vulnerable ·Siemens
- cpe:2.3:h:siemens:siplus_net_cp_1543-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2022-03-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2016-8562
- 2026-10-03 Alias added: GHSA-f87x-hp4c-9cvw
References
More Siemens Simatic Cp 1543-1 Firmware vulnerabilities
- TI-2019-09597 An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for… CVSS 3.1CRITICAL 9.8
- TI-2022-15626 Heap-based buffer overflow in Siemens SIMATIC CP 1242-7 V2 CVSS 3.1CRITICAL 10.0
- TI-2021-05785 Improper input validation in https://github.com/curl/curl CVSS 3.1LOW 3.7
- TI-2022-15627 Command injection in Siemens SIMATIC CP 1242-7 V2 CVSS 3.1CRITICAL 9.8
- TI-2022-15628 Code injection in Siemens RUGGEDCOM RM1224 LTE EU CVSS 4.0HIGH 8.8
- TI-2024-33749 Incorrect authorization in Siemens SIMATIC CP 1543-1 V4.0 CVSS 4.0HIGH 8.7
Sources
- CVE-2016-8562 · CVE Program
- CVE-2016-8562 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-f87x-hp4c-9cvw · 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