⚠ Actively exploited
Added to CISA KEV on 2022-03-03. Federal agencies required to patch by 2022-03-24. Required action: Apply updates per vendor instructions..

CVE-2016-8562 — Improper Input Validation in Siemens Simatic CP 1543-1 Firmware

CWE-20 — Improper Input Validation5 documents5 sources
Severity
7.5HIGHNVD
EPSS
14.6%
top 5.52%
CISA KEV
KEV
Added 2022-03-03
Due 2022-03-24
Exploit
Exploited in wild
Active exploitation observed
Affected products
2
Siemens Simatic CP 1543-1 FirmwareSiemens Siplus NET CP 1543-1 Firmware
Timeline
PublishedNov 18
KEV addedMar 3
KEV dueMar 24
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.6 | Impact: 5.9

Affected Packages2 packages

Patches

Patch: www.siemens.com ↗Patch: www.siemens.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-f87x-hp4c-9cvw: A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2↗2022-05-13
▶
CVEList
CVE-2016-8562: A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2↗2016-11-18
▶
VulnCheck
Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability↗2016
▶

📋Vendor Advisories

1
CISA
Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability↗2022-03-03
▶
CVE-2016-8562 — Improper Input Validation in Siemens | cvebase