Is CVE-2022-39243 actively exploited?

No active exploitation of CVE-2022-39243 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-39243 be exploited remotely?

Yes. CVE-2022-39243 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-39243?

CVE-2022-39243 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2022-39243

CRITICAL

CVE-2022-39243

CWE-77Published: September 26, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

NuProcess is an external process execution implementation for Java. In all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check. This vulnerability can only be exploited to inject command line arguments on Linux. Version 2.0.5 contains a patch. As a workaround, users of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.

NVD Source

Risk Analysis

The NuProcess library for Java fails to properly sanitize input when forking processes on Linux, leading to command line injection. This critical vulnerability allows attackers to execute arbitrary commands. The 9.8 CVSS score reflects the high impact of this flaw.

No public exploit is known, and it is not in CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Upgrade to NuProcess version 2.0.5 or later. As a workaround, sanitize all command strings to remove NUL characters before execution.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-39243 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.