Improper input validation in Siemens Simatic S7-1500
CVE-2018-16559
A vulnerability has been identified in SIMATIC S7-1500 CPU (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 CPU (All versions <= V1.8.5). Specially crafted network packets sent to port 80/tcp or 443/tcp could allow an unauthenticated remote attacker to cause a Denial-of-Service condition of the device. The security vulnerability could be exploited by an attacker with network access to the affected systems on port 80/tcp or 443/tcp. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Siemens Simatic S7-1500
- Siemens Simatic S7-1500 CPU — versions All versions <= V1.8.5, All versions >= V2.0 and < V2.5
- Siemens Simatic S7-1500 Firmware
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-180635.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-16559?
- CVE-2018-16559 is a high-severity vulnerability in Siemens Simatic S7-1500, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-04-17.
- How severe is CVE-2018-16559?
- High severity. CVSS v3 base score is 7.5 out of 10.