CVEvulnerability

CVE-2016-8562

7.5 HIGH Known exploited Published 2016-11-18 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability — Siemens SIMATIC CP

An improper privilege management vulnerability exists within the Siemens SIMATIC Communication Processor (CP) that allows a privileged attacker to remotely cause a denial of service.

Added to KEV
2022-03-03
Remediation due
2022-03-24
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2016-8562
Status
Analyzed
Published
2016-11-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
3.5 LOW — AV:N/AC:M/Au:S/C:N/I:N/A:P

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.

Affected configurations

• siemens simatic cp 1543-1 firmware (< 2.0.28) • siemens siplus net cp 1543-1 firmware (< 2.0.28)

References