CVE-2020-16977

HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 7.0Exploit: None knownExposed: 0

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

A remote code execution vulnerability exists in Visual Studio Code when the Python extension loads a Jupyter notebook file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would need to convince a target to open a specially crafted file in Visual Studio Code with the Python extension installed. The update addresses the vulnerability by modifying the way Visual Studio Code Python extension renders notebook content.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity70% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
88%
KEV
Not listed

Published

October 16, 2020

Last Modified

February 23, 2026

References (2)

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 30× 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 119 total refreshes for this CVE.

  1. 2026-08-20 22:52 UTCEPSS rescore
  2. 2026-08-19 17:00 UTCEPSS rescore
  3. 2026-08-18 13:44 UTCEPSS rescore
  4. 2026-08-16 14:52 UTCEPSS rescore
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  1. 2026-07-24 14:14 UTCEPSS rescore
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  4. 2026-07-23 01:50 UTCEG score recompute
  5. 2026-07-22 22:35 UTCEG score recompute
  6. 2026-07-22 14:05 UTCEPSS rescore
  7. 2026-07-21 15:22 UTCEPSS rescore
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  20. 2026-07-13 06:10 UTCEPSS rescore
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  22. 2026-07-12 05:44 UTCEPSS rescore
  23. 2026-07-11 08:25 UTCEPSS rescore
  24. 2026-07-11 08:25 UTCEPSS rescore
  25. 2026-07-09 19:07 UTCEPSS rescore
  26. 2026-07-08 15:12 UTCEPSS rescore
  27. 2026-07-07 13:43 UTCEPSS rescore
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  29. 2026-07-06 16:25 UTCEPSS rescore
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  46. 2026-06-23 21:31 UTCEPSS rescore
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  50. 2026-06-21 14:54 UTCEPSS rescore
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  52. 2026-06-21 01:57 UTCEPSS rescore
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  54. 2026-06-19 19:23 UTCEPSS rescore
  55. 2026-06-18 17:50 UTCEPSS rescore
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  59. 2026-06-15 17:46 UTCEPSS rescore
  60. 2026-06-13 22:58 UTCEPSS rescore
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  69. 2026-06-07 15:23 UTCEPSS rescore
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  71. 2026-06-05 22:45 UTCEPSS rescore
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  73. 2026-06-05 06:08 UTCEPSS rescore
  74. 2026-06-05 06:08 UTCEPSS rescore
  75. 2026-06-04 13:10 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-16977?
CVE-2020-16977 is a high vulnerability published on October 16, 2020. <p>A remote code execution vulnerability exists in Visual Studio Code when the Python extension loads a Jupyter notebook file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative…
When was CVE-2020-16977 disclosed?
CVE-2020-16977 was first published in the National Vulnerability Database on October 16, 2020, with the most recent update on February 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-16977 actively exploited?
CVE-2020-16977 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 12.3% of all scored CVEs.
What is the CVSS score of CVE-2020-16977?
CVE-2020-16977 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2020-16977?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-16977, 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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