Is CVE-2019-9891 actively exploited?

No active exploitation of CVE-2019-9891 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-9891 be exploited remotely?

Yes. CVE-2019-9891 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-9891?

CVE-2019-9891 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2019-9891

CWE-94Published: May 31, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The function getopt_simple as described in Advanced Bash Scripting Guide (ISBN 978-1435752184) allows privilege escalation and execution of commands when used in a shell script called, for example, via sudo.

NVD Source

Technical Analysis

CVE-2019-9891 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.