CVE-2026-20216

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:github_m, epss, ghsa
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated,...

A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device.

This vulnerability is due to improper handling of temporary resources during file scanning. An attacker could exploit this vulnerability by submitting a crafted InstallShield file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process and temporarily consume available system resources, resulting in a DoS condition on the affected software.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
30.9%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Vendor Advisories for CVE-2026-20216(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 25× 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. 2026-07-06 17:55 UTCEG score recompute
  2. 2026-07-06 17:54 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 04:38 UTCEG score recompute
  5. 2026-07-06 04:38 UTCGHSA enrichment
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 15:27 UTCEG score recompute
  8. 2026-07-05 15:27 UTCGHSA enrichment
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-05 02:14 UTCEG score recompute
  12. 2026-07-05 02:14 UTCGHSA enrichment
  13. 2026-07-04 13:03 UTCEG score recompute
  14. 2026-07-04 13:02 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-03 23:50 UTCEG score recompute
  17. 2026-07-03 23:50 UTCGHSA enrichment
  18. 2026-07-03 10:39 UTCEG score recompute
  19. 2026-07-03 10:39 UTCGHSA enrichment
  20. 2026-07-02 21:27 UTCEG score recompute
  21. 2026-07-02 21:26 UTCGHSA enrichment
  22. 2026-07-02 08:15 UTCEG score recompute
  23. 2026-07-02 08:15 UTCGHSA enrichment
  24. 2026-07-01 19:04 UTCEG score recompute
  25. 2026-07-01 19:04 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20216?
CVE-2026-20216 is a high vulnerability published on July 1, 2026. A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated,... A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to…
When was CVE-2026-20216 disclosed?
CVE-2026-20216 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20216 actively exploited?
CVE-2026-20216 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-20216?
CVE-2026-20216 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-20216?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20216, 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

Explore the affected products and dependency analysis for CVE-2026-20216

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