Is CVE-2021-37778 actively exploited?

No active exploitation of CVE-2021-37778 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-37778 be exploited remotely?

Yes. CVE-2021-37778 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-37778?

CVE-2021-37778 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-37778

CWE-120Published: June 30, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

There is a buffer overflow in gps-sdr-sim v1.0 when parsing long command line parameters, which can lead to DoS or code execution.

NVD Source

Risk Analysis

A buffer overflow in gps-sdr-sim version 1.0 allows for remote code execution or denial of service. The 9.8 CVSS score indicates a critical risk to systems running this software.

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

Recommended Action

Update to a patched version of the software if available. If no patch exists, restrict access to the service.

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-2021-37778 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.