Contact

OTT HydroMet Systems Not Affected by the Java Vulnerability Issue

Important Statement: OTT HydroMet environmental monitoring systems are not affected by the current Java log4j vulnerability issue.

Java Situation

Media and government institutions reported Log4j vulnerability in versions 2.0 to 2.14.1 on the platform CVE under the number CVE-2021-44228, which may allow attackers to execute their own program code on the target system and thus compromise the server. Log4j is a popular library for Java applications. It is used for high-performance aggregation of log data of an application.

No Issues with OTT HydroMet Systems, Products, or Software

An analysis of the OTT HydroMet Group’s software and hardware products has shown that the effected version of Log4j is not in use and we therefore do not need to assume any immediate threat from OTT HydroMet systems.

As always, we will continue to monitor ongoing developments regarding this matter and respond to any new findings.

Picture of OTT HydroMet Blog Team

OTT HydroMet Blog Team

Observing the elements is key to better understanding our planet. This blog tells the manifold stories of experts working in environmental monitoring with help of our sensors and solutions.
All Posts

You might also like these articles

A New Chapter: OTT HydroMet Evolves into Ott and Kipp & Zonen

Clearer focus. Deeper expertise. Decision ready intelligence.Veralto has introduced its Environmental Business to create a clearer, more customer focused structure across environmental analytics. As part of this evolution, Ott and...
24. March 2026
HydrologyMeteorologySolar Energy
PV Module IV Curve

PV Module IV Curve: A Definitive Guide to Understanding Solar Performance

A PV module IV curve is one of the most powerful tools available for understanding how a photovoltaic module actually performs under real‑world conditions. More than a theoretical plot, the IV (current-voltage) curve reveals...
18. March 2026
Solar Energy
An expansive solar panel array stretches across a desert landscape, with sand dunes shaping the horizon. Hazy sunlight filters through, casting a warm glow over the scene, illustrating the intersection of technology and the environment.

Soiling, Performance Risk, and Capacity Testing in Utility‑Scale Solar

Why Measurement Strategy Matters More Than Ever Executive Summary Soiling is a well‑established cause of energy loss in photovoltaic (PV) systems. Less widely recognized is its impact during capacity and performance...
6. March 2026
Solar Energy