CVE-2020-17108

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4.0%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

HEVC Video Extensions Remote Code Execution Vulnerability

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
41
EG Risk 41/100CISA SSVC

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
Severity78% × 45%
Exploitation4% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
4.0%
EPSS %ILE
90th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

November 11, 2020

Last Modified

November 21, 2024

References (2)

Vendor Advisories for CVE-2020-17108(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 7× in last 7d / 28× 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 157 total refreshes for this CVE.

  1. 2026-10-06 15:13 UTCEPSS rescore
  2. 2026-10-05 17:39 UTCEPSS rescore
  3. 2026-10-04 23:18 UTCEPSS rescore
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  6. 2026-09-30 15:13 UTCEG score recompute
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  1. 2026-09-10 09:29 UTCEPSS rescore
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  24. 2026-08-12 13:47 UTCEPSS rescore
  25. 2026-08-09 13:43 UTCEPSS rescore
  26. 2026-08-08 16:33 UTCEPSS rescore
  27. 2026-08-07 16:23 UTCEPSS rescore
  28. 2026-08-06 13:43 UTCEPSS rescore
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  42. 2026-07-23 14:15 UTCEPSS rescore
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  44. 2026-07-23 01:50 UTCEG score recompute
  45. 2026-07-22 22:35 UTCEG score recompute
  46. 2026-07-22 14:05 UTCEPSS rescore
  47. 2026-07-21 15:22 UTCEPSS rescore
  48. 2026-07-21 15:22 UTCEPSS rescore
  49. 2026-07-20 17:04 UTCEPSS rescore
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  51. 2026-07-19 14:28 UTCEPSS rescore
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  55. 2026-07-16 16:59 UTCEPSS rescore
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  74. 2026-07-04 06:29 UTCEPSS rescore
  75. 2026-07-04 06:28 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-17108?
CVE-2020-17108 is a high vulnerability published on November 11, 2020. HEVC Video Extensions Remote Code Execution Vulnerability
When was CVE-2020-17108 disclosed?
CVE-2020-17108 was first published on November 11, 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-2020-17108 actively exploited?
CVE-2020-17108 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.0% probability of exploitation in the next 30 days (90th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-17108?
CVE-2020-17108 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2020-17108?
A fix for CVE-2020-17108 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2020-17108 are linked in the Vendor Advisories panel on this page.

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