Is CVE-2021-38487 actively exploited?

No active exploitation of CVE-2021-38487 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-38487 be exploited remotely?

Yes. CVE-2021-38487 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-38487?

CVE-2021-38487 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2021-38487

CWE-406Published: May 5, 2022· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official Description

RTI Connext Professional versions 4.1 to 6.1.0, and Connext Micro versions 2.4 and later are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic. This may result in a denial-of-service condition and information exposure.

NVD Source

Risk Analysis

RTI Connext products are vulnerable to a denial-of-service attack via traffic flooding using specially crafted packets. The 9.1 CVSS score indicates a critical risk to system availability and potential information exposure.

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

Recommended Action

Consult vendor documentation for specific patch versions for Connext Professional, Micro, and Secure products.

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-2021-38487 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), availability disruption (denial of service), with a CVSS base score of 9.1.