CVE-2016-8562 KEV
7.5
HIGH · CVSS 3.1 · EPSS 3.6% (pctl 89)
Patch first
On CISA KEV — known exploited in the wild, due 2022-03-24.
Description
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.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.61% — more likely to be exploited than 89% of all CVEs |
| On CISA KEV | yes — remediate by 2022-03-24 |
| Public exploit | none known |
| Published | 2016-11-18 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability |
|---|---|
| Added | 2022-03-03 |
| Due | 2022-03-24 |
| Vendor / product | Siemens / SIMATIC CP |
| Ransomware use | none reported |
Affected (4)
| Vendor | Product |
|---|---|
| siemens | simatic cp 1543-1 |
| siemens | simatic cp 1543-1 firmware |
| siemens | siplus net cp 1543-1 |
| siemens | siplus net cp 1543-1 firmware |
References
- http://www.securityfocus.com/bid/94436
- http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-672373.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-672373.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-16-327-01
- http://www.securityfocus.com/bid/94436
- http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-672373.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-672373.pdf
- https://ics-cert.us-cert.gov/advisories/ICSA-16-327-01
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-8562
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