CVE-2020-7730

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 3.1%, top 13% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.8Exploit: None knownExposed: 0

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

The package bestzip before 2.1.7 are vulnerable to Command Injection via the options param.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
87%
KEV
Not listed

Published

September 4, 2020

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Sep 19, 2026
⚠️ Active exploitation confirmed. Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic🔴 Active Exploitation

Command Injection in bestzip | CVE-2020-7730 | Snyk

https://snyk.io/vuln/SNYK-JS-BESTZIP-609371
github_commit

commit 45d4a901478c (nfriedly/node-bestzip)

Fix landed in nfriedly/node-bestzip commit 45d4a901478c — awaiting tagged release

https://github.com/nfriedly/node-bestzip/commit/45d4a901478c6a8f396c8b959dd6cf8fd3f955b6

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
bestzip—2.1.7—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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.

Showing the most recent 100 of 147 total refreshes for this CVE.

  1. 2026-09-24 14:00 UTCEPSS rescore
  2. 2026-09-22 14:44 UTCEPSS rescore
  3. 2026-09-21 20:28 UTCEPSS rescore
  4. 2026-09-19 15:37 UTCEPSS rescore
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  1. 2026-08-21 23:45 UTCEPSS rescore
  2. 2026-08-20 12:01 UTCOSV refresh
  3. 2026-08-19 17:00 UTCEPSS rescore
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  18. 2026-08-04 15:06 UTCEPSS rescore
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  22. 2026-07-30 16:25 UTCEPSS rescore
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  24. 2026-07-28 15:33 UTCEPSS rescore
  25. 2026-07-26 14:52 UTCEPSS rescore
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  27. 2026-07-24 14:15 UTCEPSS rescore
  28. 2026-07-23 14:15 UTCEPSS rescore
  29. 2026-07-23 01:55 UTCEG score recompute
  30. 2026-07-22 22:41 UTCEG score recompute
  31. 2026-07-22 14:05 UTCEPSS rescore
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  38. 2026-07-19 06:22 UTCOSV refresh
  39. 2026-07-19 02:26 UTCEPSS rescore
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  54. 2026-07-09 19:07 UTCEPSS rescore
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  66. 2026-07-01 12:21 UTCOSV refresh
  67. 2026-06-30 23:20 UTCEPSS rescore
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  69. 2026-06-28 04:54 UTCEPSS rescore
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  73. 2026-06-25 13:48 UTCEPSS rescore
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  75. 2026-06-24 14:03 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-7730?
CVE-2020-7730 is a critical vulnerability published on September 4, 2020. The package bestzip before 2.1.7 are vulnerable to Command Injection via the options param.
When was CVE-2020-7730 disclosed?
CVE-2020-7730 was first published in the National Vulnerability Database on September 4, 2020, 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-2020-7730 actively exploited?
CVE-2020-7730 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 12.6% of all scored CVEs.
What is the CVSS score of CVE-2020-7730?
CVE-2020-7730 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-7730?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-7730, 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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