CVE-2026-6094

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory published 2026-06-25. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: None knownExposed: 0

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

Heap buffer overread in wc_PKCS7_DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr.
generic Patch Available🟡 PoC Available

wolfSSL Security Vulnerabilities | Documentation - wolfSSL

https://www.wolfssl.com/docs/security-vulnerabilities/
github_pr

PKCS7 Fixes

Fix merged in wolfSSL/wolfssl PR #10128 on 2026-04-23 — awaiting tagged release

https://github.com/wolfSSL/wolfssl/pull/10128

Vendor Advisories for CVE-2026-6094(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
wolfssl4.6.0+p1-0+deb11u1 ... 5.9.2-1 (40 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
wolfssl5.5.4-2, 5.5.4-2+deb12u1, 5.5.4-2+deb12u25.5.4-2+deb12u3—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
wolfssl5.7.2-0.1 ... 5.9.2-1 (14 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 99× 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 390 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 09:37 UTCEPSS rescore
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-05 15:31 UTCEPSS rescore
  7. 2026-09-04 05:07 UTCEPSS rescore
  8. 2026-09-02 14:12 UTCEPSS rescore
  9. 2026-09-01 13:54 UTCEPSS rescore
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-08-30 23:47 UTCGHSA enrichment
  12. 2026-08-30 19:31 UTCEG score recompute
  13. 2026-08-30 19:31 UTCGHSA enrichment
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:42 UTCEPSS rescore
  17. 2026-08-28 03:40 UTCGHSA enrichment
  18. 2026-08-27 23:18 UTCEG score recompute
  19. 2026-08-27 23:18 UTCGHSA enrichment
  20. 2026-08-26 14:47 UTCEPSS rescore
  21. 2026-08-25 13:49 UTCEPSS rescore
  22. 2026-08-25 06:49 UTCGHSA enrichment
  23. 2026-08-25 02:05 UTCGHSA enrichment
  24. 2026-08-24 21:51 UTCEG score recompute
  25. 2026-08-24 21:51 UTCGHSA enrichment
Show 75 more
  1. 2026-08-24 13:09 UTCEG score recompute
  2. 2026-08-24 13:09 UTCGHSA enrichment
  3. 2026-08-24 04:33 UTCGHSA enrichment
  4. 2026-08-24 00:16 UTCGHSA enrichment
  5. 2026-08-23 20:01 UTCGHSA enrichment
  6. 2026-08-23 15:46 UTCGHSA enrichment
  7. 2026-08-23 11:31 UTCGHSA enrichment
  8. 2026-08-23 07:17 UTCGHSA enrichment
  9. 2026-08-23 02:38 UTCEG score recompute
  10. 2026-08-23 02:38 UTCGHSA enrichment
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-22 22:23 UTCGHSA enrichment
  13. 2026-08-22 14:50 UTCGHSA enrichment
  14. 2026-08-22 10:12 UTCEG score recompute
  15. 2026-08-22 10:12 UTCGHSA enrichment
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 22:42 UTCGHSA enrichment
  18. 2026-08-21 18:27 UTCGHSA enrichment
  19. 2026-08-21 14:12 UTCGHSA enrichment
  20. 2026-08-21 09:15 UTCGHSA enrichment
  21. 2026-08-21 05:00 UTCGHSA enrichment
  22. 2026-08-21 00:28 UTCEG score recompute
  23. 2026-08-21 00:27 UTCGHSA enrichment
  24. 2026-08-20 22:56 UTCEPSS rescore
  25. 2026-08-20 20:13 UTCGHSA enrichment
  26. 2026-08-20 15:58 UTCGHSA enrichment
  27. 2026-08-20 11:17 UTCGHSA enrichment
  28. 2026-08-20 07:02 UTCEG score recompute
  29. 2026-08-20 07:02 UTCGHSA enrichment
  30. 2026-08-19 17:04 UTCEPSS rescore
  31. 2026-08-19 14:44 UTCGHSA enrichment
  32. 2026-08-19 10:29 UTCGHSA enrichment
  33. 2026-08-19 05:41 UTCGHSA enrichment
  34. 2026-08-19 01:21 UTCEG score recompute
  35. 2026-08-19 01:21 UTCGHSA enrichment
  36. 2026-08-18 13:49 UTCEPSS rescore
  37. 2026-08-18 13:49 UTCEPSS rescore
  38. 2026-08-17 13:47 UTCEPSS rescore
  39. 2026-08-17 13:01 UTCGHSA enrichment
  40. 2026-08-17 08:46 UTCGHSA enrichment
  41. 2026-08-17 04:32 UTCGHSA enrichment
  42. 2026-08-17 00:17 UTCGHSA enrichment
  43. 2026-08-16 20:02 UTCEG score recompute
  44. 2026-08-16 20:02 UTCGHSA enrichment
  45. 2026-08-16 14:56 UTCEPSS rescore
  46. 2026-08-16 14:56 UTCEPSS rescore
  47. 2026-08-16 14:26 UTCGHSA enrichment
  48. 2026-08-16 10:11 UTCGHSA enrichment
  49. 2026-08-16 05:56 UTCEG score recompute
  50. 2026-08-16 05:56 UTCGHSA enrichment
  51. 2026-08-16 02:15 UTCEPSS rescore
  52. 2026-08-16 01:42 UTCGHSA enrichment
  53. 2026-08-15 21:27 UTCGHSA enrichment
  54. 2026-08-15 17:11 UTCGHSA enrichment
  55. 2026-08-15 12:56 UTCGHSA enrichment
  56. 2026-08-15 08:41 UTCGHSA enrichment
  57. 2026-08-15 04:26 UTCEG score recompute
  58. 2026-08-15 04:26 UTCGHSA enrichment
  59. 2026-08-15 01:31 UTCEPSS rescore
  60. 2026-08-15 00:11 UTCGHSA enrichment
  61. 2026-08-14 19:57 UTCGHSA enrichment
  62. 2026-08-14 15:42 UTCGHSA enrichment
  63. 2026-08-14 11:27 UTCGHSA enrichment
  64. 2026-08-14 07:13 UTCGHSA enrichment
  65. 2026-08-14 02:57 UTCGHSA enrichment
  66. 2026-08-13 22:43 UTCEG score recompute
  67. 2026-08-13 22:43 UTCGHSA enrichment
  68. 2026-08-13 22:00 UTCEPSS rescore
  69. 2026-08-13 18:28 UTCGHSA enrichment
  70. 2026-08-13 13:11 UTCGHSA enrichment
  71. 2026-08-13 08:57 UTCGHSA enrichment
  72. 2026-08-13 04:42 UTCGHSA enrichment
  73. 2026-08-13 00:28 UTCGHSA enrichment
  74. 2026-08-12 20:13 UTCGHSA enrichment
  75. 2026-08-12 15:58 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6094?
CVE-2026-6094 is a critical vulnerability published on June 25, 2026. Heap buffer overread in wcPKCS7DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS.
When was CVE-2026-6094 disclosed?
CVE-2026-6094 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6094 actively exploited?
CVE-2026-6094 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 57.7% of all scored CVEs.
What is the CVSS score of CVE-2026-6094?
CVE-2026-6094 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-6094?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6094, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-6094

Explore →

Is Your Infrastructure Affected by CVE-2026-6094?

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

Start Free Scan →Browse All CVEs