How severe is CVE-2026-38891?

CVE-2026-38891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-38891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-38891?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-38891 published?

CVE-2026-38891 was published on 2026-07-01 and last updated on 2026-07-02.

CVE-2026-38891

CVE-2026-38891 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Published: 2026-07-01
Last modified: 2026-07-02

Description

An improper input validation in the gazebo_ros_diff_drive.cpp component of gazebo_plugins v3.9.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted geometry_msgs::Twist message.

Frequently asked questions

What is CVE-2026-38891?: An improper input validation in the gazebo_ros_diff_drive.cpp component of gazebo_plugins v3.9.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted geometry_msgs::Twist message.
How severe is CVE-2026-38891?: CVE-2026-38891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-38891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-38891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-38891 published?: CVE-2026-38891 was published on 2026-07-01 and last updated on 2026-07-02.

References

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