CVE-2026-62798

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-11. The CNA's CVSS baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.5Exploit: 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).

Untrusted pointer dereference in Windows Win32K allows an authorized attacker to disclose information locally.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
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; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.4%
EPSS %ILE
32nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

August 11, 2026

Last Modified

October 8, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
Fix referenced — no release confirmed yet. Sources: microsoft.
microsoftMentions a patch (unverified)

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62798

Vendor Advisories for CVE-2026-62798(2)

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 17× in last 7d / 101× 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 292 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-62798?
CVE-2026-62798 is a medium vulnerability published on August 11, 2026. Untrusted pointer dereference in Windows Win32K allows an authorized attacker to disclose information locally.
When was CVE-2026-62798 disclosed?
CVE-2026-62798 was first published on August 11, 2026, with the most recent update on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62798 actively exploited?
CVE-2026-62798 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62798?
CVE-2026-62798 has a CVSS base score of 5.5 (the CNA's own assessment, by microsoft; NVD's own analysis pending).
How do I remediate CVE-2026-62798?
A fix for CVE-2026-62798 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-2026-62798 are linked in the Vendor Advisories panel on this page.

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