CVE-2021-37778

CRITICALNVD 9.89.8—Trending — 3 sources updated this week

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 79.9%
KEV: Not listed

Published

June 30, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/osqzss/gps-sdr-sim/issues/294
af854a3a-2127-422b-91ae-364da2661108https://github.com/osqzss/gps-sdr-sim/issues/294

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 19:39 UTCEG score recompute
2026-05-25 19:39 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-37778?

CVE-2021-37778 is a critical vulnerability published on June 30, 2022. 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.

When was CVE-2021-37778 disclosed?

CVE-2021-37778 was first published in the National Vulnerability Database on June 30, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-37778 actively exploited?

CVE-2021-37778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

CVE-2021-37778 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-37778?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-37778, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-37778

📅 Published

🔄 Last Modified

🔗 References (2)