CVE-2022-4991

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-06-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.4Exploit: NoneExposed: 0

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

Tychon includes an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory that may be controllable by an unprivileged user on Windows. Tychon contains a privileged service that uses this OpenSSL component. A user who can place a specially-crafted openssl.cnf file at an appropriate path may be able to achieve arbitrary code execution with SYSTEM privileges.

CVSS v3
7.4
EG Score
7.4(medium)
EPSS
16.7%
KEV
Not listed

Published

June 1, 2026

Last Modified

June 2, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
No patch confirmed yet. Sources: cert.
cert

VU#730007 - Tychon is vulnerable to privilege escalation due to OPENSSLDIR location

https://www.kb.cert.org/vuls/id/730007

Vendor Advisories for CVE-2022-4991(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 20× in last 7d / 104× 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 174 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2022-4991?
CVE-2022-4991 is a high vulnerability published on June 1, 2026. Tychon includes an OpenSSL component that specifies an OPENSSLDIR variable as a subdirectory that may be controllable by an unprivileged user on Windows. Tychon contains a privileged service that uses this OpenSSL component. A user who can place a specially-crafted openssl.cnf file at an…
When was CVE-2022-4991 disclosed?
CVE-2022-4991 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-4991 actively exploited?
CVE-2022-4991 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-4991?
CVE-2022-4991 has a CVSS v3.1 base score of 7.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2022-4991?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4991, 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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