High 7.5Known exploited (CISA KEV)Published Nov 18, 2016

CVE-2016-8562A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS NET CP 1543-1 (All versions < V2.0.28).

Updated under an hour ago (Oct 26, 2026, 8:10 PM ET)

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It affects siemens simatic_cp_1543-1_firmware and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Mar 3, 2022; federal agencies had to remediate by Mar 24, 2022. Treat that date as your deadline.

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Every CVE for siemens simatic_cp_1543-1_firmware

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Added to CISA KEV Mar 3, 2022; federal remediation due Mar 24, 2022Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 3.61% (percentile 89)
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

siemens simatic_cp_1543-1_firmware siemens:simatic_cp_1543-1_firmware	before 2.0.28	NVD
siemens siplus_net_cp_1543-1_firmware siemens:siplus_net_cp_1543-1_firmware	before 2.0.28	NVD

References

References

http://www.securityfocus.com/bid/94436	vdb-entry, x-refsource-bid, broken-link, third-party-advisory
https://ics-cert.us-cert.gov/advisories/ICSA-16-327-01	x-refsource-misc, third-party-advisory, us-government-resource
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-672373.pdf	x-refsource-confirm, broken-link, patch, vendor-advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-672373.pdf	x-refsource-confirm, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-8562	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.