CVE-2021-32773

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 58% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Racket is a general-purpose programming language and an ecosystem for language-oriented programming. In versions prior to 8.2, code evaluated using the Racket sandbox could cause system modules to incorrectly use attacker-created modules instead of their intended dependencies. This could allow system functions to be controlled by the attacker, giving access to facilities intended to be restricted. This problem is fixed in Racket version 8.2. A workaround is available, depending on system settings. For systems that provide arbitrary Racket evaluation, external sandboxing such as containers limit the impact of the problem. For multi-user evaluation systems, such as the handin-server system, it is not possible to work around this problem and upgrading is required.

CVSS v3
6.1
EG Score
6.1(medium)
EPSS
55.0%
KEV
Not listed

Published

July 20, 2021

Last Modified

November 21, 2024

References (4)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:06 UTCEPSS rescore
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  3. 2026-07-21 15:22 UTCEPSS rescore
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  9. 2026-07-18 16:29 UTCOSV refresh
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  1. 2026-07-06 02:21 UTCEPSS rescore
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  7. 2026-06-30 23:20 UTCEPSS rescore
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  9. 2026-06-30 23:00 UTCOSV refresh
  10. 2026-06-29 14:04 UTCEPSS rescore
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  23. 2026-06-21 14:55 UTCEPSS rescore
  24. 2026-06-21 01:58 UTCEPSS rescore
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  26. 2026-06-19 19:24 UTCEPSS rescore
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  37. 2026-06-13 01:46 UTCOSV refresh
  38. 2026-06-12 23:10 UTCEPSS rescore
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  40. 2026-06-11 13:58 UTCEPSS rescore
  41. 2026-06-10 22:16 UTCEPSS rescore
  42. 2026-06-10 13:20 UTCEPSS rescore
  43. 2026-06-08 14:15 UTCEPSS rescore
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  45. 2026-06-07 15:23 UTCEPSS rescore
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  71. 2026-05-26 13:21 UTCEG score recompute
  72. 2026-05-26 07:17 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2021-32773?
CVE-2021-32773 is a medium vulnerability published on July 20, 2021. Racket is a general-purpose programming language and an ecosystem for language-oriented programming. In versions prior to 8.2, code evaluated using the Racket sandbox could cause system modules to incorrectly use attacker-created modules instead of their intended dependencies. This could allow…
When was CVE-2021-32773 disclosed?
CVE-2021-32773 was first published in the National Vulnerability Database on July 20, 2021, 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-2021-32773 actively exploited?
CVE-2021-32773 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 55.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-32773?
CVE-2021-32773 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2021-32773?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-32773, 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.

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