CVE-2019-18336 is a vulnerability in Siemens Sinumerik 840d Sl
Published on March 10, 2020
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2019-18336 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2019-18336
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2019-18336 are published in Siemens Sinumerik 840d Sl:
Affected Versions
Siemens AG SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants):- Version All versions < V3.X.17 is affected.
- Version All versions < V1.1.8 is affected.
- Version All versions < V1.1.1 is affected.
- Version All versions < V4.8.6 is affected.
- Version All versions < V4.94 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.