CVE-2026-20217

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-01. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

A vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in PESpin files during scanning, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
40%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

ClamAV Vulnerabilities Affecting Cisco Products: July 2026

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-88cFYyxR

Vendor Advisories for CVE-2026-20217(3)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibclamav12 (1.5.3+dfsg-0ubuntu0.26.04.1) @ resolute2026-07-26ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 18× in last 7d / 96× 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. 2026-07-27 00:59 UTCEG score recompute
  2. 2026-07-27 00:59 UTCVendor advisory
  3. 2026-07-27 00:59 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 13:16 UTCEG score recompute
  7. 2026-07-26 13:16 UTCVendor advisory
  8. 2026-07-26 13:16 UTCGHSA enrichment
  9. 2026-07-25 14:17 UTCEPSS rescore
  10. 2026-07-25 14:17 UTCEPSS rescore
  11. 2026-07-24 14:17 UTCEPSS rescore
  12. 2026-07-23 14:18 UTCEPSS rescore
  13. 2026-07-23 14:18 UTCEPSS rescore
  14. 2026-07-23 03:06 UTCEG score recompute
  15. 2026-07-22 14:08 UTCEPSS rescore
  16. 2026-07-21 15:24 UTCEPSS rescore
  17. 2026-07-21 15:24 UTCEPSS rescore
  18. 2026-07-20 17:08 UTCEPSS rescore
  19. 2026-07-19 14:31 UTCEPSS rescore
  20. 2026-07-19 14:31 UTCEPSS rescore
  21. 2026-07-19 02:29 UTCEPSS rescore
  22. 2026-07-19 02:28 UTCEPSS rescore
  23. 2026-07-18 10:04 UTCEPSS rescore
  24. 2026-07-18 10:04 UTCEPSS rescore
  25. 2026-07-17 05:23 UTCVendor advisory
Show 71 more
  1. 2026-07-17 05:23 UTCGHSA enrichment
  2. 2026-07-16 18:31 UTCVendor advisory
  3. 2026-07-16 18:31 UTCGHSA enrichment
  4. 2026-07-16 17:03 UTCEPSS rescore
  5. 2026-07-16 17:03 UTCEPSS rescore
  6. 2026-07-16 07:35 UTCVendor advisory
  7. 2026-07-16 07:35 UTCGHSA enrichment
  8. 2026-07-15 20:42 UTCVendor advisory
  9. 2026-07-15 20:42 UTCGHSA enrichment
  10. 2026-07-15 16:57 UTCEPSS rescore
  11. 2026-07-15 16:57 UTCEPSS rescore
  12. 2026-07-15 09:47 UTCVendor advisory
  13. 2026-07-15 09:47 UTCGHSA enrichment
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-15 02:00 UTCEPSS rescore
  16. 2026-07-14 22:52 UTCVendor advisory
  17. 2026-07-14 22:52 UTCGHSA enrichment
  18. 2026-07-14 11:59 UTCVendor advisory
  19. 2026-07-14 11:59 UTCGHSA enrichment
  20. 2026-07-14 01:05 UTCVendor advisory
  21. 2026-07-14 01:05 UTCGHSA enrichment
  22. 2026-07-13 22:30 UTCEPSS rescore
  23. 2026-07-13 14:12 UTCVendor advisory
  24. 2026-07-13 14:12 UTCGHSA enrichment
  25. 2026-07-13 06:13 UTCEPSS rescore
  26. 2026-07-13 06:13 UTCEPSS rescore
  27. 2026-07-13 03:20 UTCVendor advisory
  28. 2026-07-13 03:20 UTCGHSA enrichment
  29. 2026-07-12 16:27 UTCVendor advisory
  30. 2026-07-12 16:27 UTCGHSA enrichment
  31. 2026-07-12 05:46 UTCEPSS rescore
  32. 2026-07-12 05:46 UTCEPSS rescore
  33. 2026-07-12 05:34 UTCVendor advisory
  34. 2026-07-12 05:34 UTCGHSA enrichment
  35. 2026-07-11 18:41 UTCVendor advisory
  36. 2026-07-11 18:41 UTCGHSA enrichment
  37. 2026-07-11 08:27 UTCEPSS rescore
  38. 2026-07-11 07:48 UTCVendor advisory
  39. 2026-07-11 07:48 UTCGHSA enrichment
  40. 2026-07-10 20:55 UTCVendor advisory
  41. 2026-07-10 20:55 UTCGHSA enrichment
  42. 2026-07-10 10:02 UTCGHSA enrichment
  43. 2026-07-09 23:09 UTCGHSA enrichment
  44. 2026-07-09 19:10 UTCEPSS rescore
  45. 2026-07-09 12:16 UTCGHSA enrichment
  46. 2026-07-09 01:22 UTCGHSA enrichment
  47. 2026-07-08 15:15 UTCEPSS rescore
  48. 2026-07-08 15:15 UTCEPSS rescore
  49. 2026-07-08 14:28 UTCGHSA enrichment
  50. 2026-07-08 03:35 UTCGHSA enrichment
  51. 2026-07-07 16:42 UTCGHSA enrichment
  52. 2026-07-07 13:46 UTCEPSS rescore
  53. 2026-07-07 05:49 UTCGHSA enrichment
  54. 2026-07-06 18:54 UTCGHSA enrichment
  55. 2026-07-06 16:27 UTCEPSS rescore
  56. 2026-07-06 08:01 UTCGHSA enrichment
  57. 2026-07-06 02:23 UTCEPSS rescore
  58. 2026-07-05 21:09 UTCGHSA enrichment
  59. 2026-07-05 10:15 UTCGHSA enrichment
  60. 2026-07-05 02:30 UTCEPSS rescore
  61. 2026-07-05 02:30 UTCEPSS rescore
  62. 2026-07-04 23:22 UTCGHSA enrichment
  63. 2026-07-04 12:26 UTCGHSA enrichment
  64. 2026-07-04 06:31 UTCEPSS rescore
  65. 2026-07-04 01:34 UTCGHSA enrichment
  66. 2026-07-03 14:38 UTCGHSA enrichment
  67. 2026-07-03 03:46 UTCGHSA enrichment
  68. 2026-07-02 16:51 UTCGHSA enrichment
  69. 2026-07-02 05:57 UTCGHSA enrichment
  70. 2026-07-01 19:04 UTCEG score recompute
  71. 2026-07-01 19:04 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-20217?
CVE-2026-20217 is a high vulnerability published on July 1, 2026. A vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in…
When was CVE-2026-20217 disclosed?
CVE-2026-20217 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20217 actively exploited?
CVE-2026-20217 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 60.1% of all scored CVEs.
What is the CVSS score of CVE-2026-20217?
CVE-2026-20217 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-20217?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20217, 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-2026-20217

Explore →

Is Your Infrastructure Affected by CVE-2026-20217?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs