CVE-2026-59135

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).

Weak authentication in Microsoft Windows Search Component 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
26th
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-2026-59135

Vendor Advisories for CVE-2026-59135(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 20× in last 7d / 113× 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 313 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59135?
CVE-2026-59135 is a medium vulnerability published on August 11, 2026. Weak authentication in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
When was CVE-2026-59135 disclosed?
CVE-2026-59135 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-2026-59135 actively exploited?
CVE-2026-59135 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59135?
CVE-2026-59135 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-2026-59135?
A fix for CVE-2026-59135 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-2026-59135 are linked in the Vendor Advisories panel on this page.

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