CVE-2026-13133

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (5th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.4Exploit: None knownExposed services: Not assessed

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

A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0, where Msftedit.dll is loaded via a relative path without a secure DLL search path, allowing a malicious DLL placed in the installer's directory to be loaded ahead of the legitimate System32 copy.

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 10, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 10, 2026
No patch confirmed yet.
generic

CVE-2026-13133 - LY Corporation

https://line.github.io/security-advisory-blog/CVE-2026-13133/

Vendor Advisories for CVE-2026-13133(1)

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 / 81× 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 176 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-13133?
CVE-2026-13133 is a high vulnerability published on August 10, 2026. A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0, where Msftedit.dll is loaded via a relative path without a secure DLL search path, allowing a malicious DLL placed in the installer's directory to be loaded ahead of the legitimate System32 copy.
When was CVE-2026-13133 disclosed?
CVE-2026-13133 was first published on August 10, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13133 actively exploited?
CVE-2026-13133 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-13133?
CVE-2026-13133 has a CVSS base score of 8.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-13133?
No fix for CVE-2026-13133 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-13133 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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