CVE-2026-49198

MEDIUMNVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory (severity: HIGH) published 2026-05-29. NVD baseline CVSS 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.9Exploit: NoneExposed: 0

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

Improper access control in the MQTT broker allows wildcard topic subscriptions, exposing all MQTT traffic to unauthorized actors.

CVSS v3
4.9
EG Score
4.9(medium)
EPSS
10.9%
KEV
Not listed

Published

May 29, 2026

Last Modified

June 8, 2026

Advisory Details (1)

Auto-updated May 29, 2026
No patch confirmed yet.
generic

Security Advisory: Firmware Update for Acer Connect W6x Router - Acer Community

https://community.acer.com/en/kb/articles/19672

Vendor Advisories for CVE-2026-49198(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 13× in last 7d / 65× 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 143 total refreshes for this CVE.

  1. 2026-07-16 02:21 UTCEG score recompute
  2. 2026-07-16 02:21 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-14 17:33 UTCEG score recompute
  6. 2026-07-14 17:33 UTCGHSA enrichment
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 18:29 UTCEG score recompute
  11. 2026-07-11 18:29 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-09 19:10 UTCEPSS rescore
  14. 2026-07-08 17:33 UTCEG score recompute
  15. 2026-07-08 17:33 UTCGHSA enrichment
  16. 2026-07-08 15:16 UTCEPSS rescore
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-06 16:27 UTCEPSS rescore
  19. 2026-07-06 02:23 UTCEPSS rescore
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-02 04:52 UTCEG score recompute
  23. 2026-07-02 04:52 UTCGHSA enrichment
  24. 2026-07-01 15:07 UTCEPSS rescore
  25. 2026-07-01 03:02 UTCEG score recompute
Show 75 more
  1. 2026-07-01 03:02 UTCGHSA enrichment
  2. 2026-06-30 23:22 UTCEPSS rescore
  3. 2026-06-30 01:12 UTCEG score recompute
  4. 2026-06-30 01:12 UTCGHSA enrichment
  5. 2026-06-29 14:06 UTCEPSS rescore
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-28 23:03 UTCEG score recompute
  8. 2026-06-28 23:03 UTCGHSA enrichment
  9. 2026-06-28 14:07 UTCEPSS rescore
  10. 2026-06-28 04:56 UTCEPSS rescore
  11. 2026-06-28 04:56 UTCEPSS rescore
  12. 2026-06-27 21:14 UTCEG score recompute
  13. 2026-06-27 21:14 UTCGHSA enrichment
  14. 2026-06-27 03:08 UTCEPSS rescore
  15. 2026-06-26 19:21 UTCEG score recompute
  16. 2026-06-26 19:21 UTCGHSA enrichment
  17. 2026-06-25 17:32 UTCEG score recompute
  18. 2026-06-25 17:32 UTCGHSA enrichment
  19. 2026-06-25 13:49 UTCEPSS rescore
  20. 2026-06-24 15:43 UTCEG score recompute
  21. 2026-06-24 15:43 UTCGHSA enrichment
  22. 2026-06-24 14:05 UTCEPSS rescore
  23. 2026-06-23 21:33 UTCEPSS rescore
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
  26. 2026-06-22 14:25 UTCEPSS rescore
  27. 2026-06-21 14:56 UTCEPSS rescore
  28. 2026-06-21 14:56 UTCEPSS rescore
  29. 2026-06-21 01:59 UTCEPSS rescore
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-19 19:26 UTCEPSS rescore
  32. 2026-06-19 19:26 UTCEPSS rescore
  33. 2026-06-18 22:45 UTCEG score recompute
  34. 2026-06-18 22:45 UTCGHSA enrichment
  35. 2026-06-18 17:52 UTCEPSS rescore
  36. 2026-06-18 17:52 UTCEPSS rescore
  37. 2026-06-17 17:53 UTCEPSS rescore
  38. 2026-06-17 04:27 UTCEG score recompute
  39. 2026-06-17 04:26 UTCGHSA enrichment
  40. 2026-06-16 17:53 UTCEPSS rescore
  41. 2026-06-16 02:35 UTCEG score recompute
  42. 2026-06-16 02:35 UTCGHSA enrichment
  43. 2026-06-15 17:49 UTCEPSS rescore
  44. 2026-06-15 17:49 UTCEPSS rescore
  45. 2026-06-15 00:45 UTCEG score recompute
  46. 2026-06-15 00:45 UTCGHSA enrichment
  47. 2026-06-14 23:18 UTCEPSS rescore
  48. 2026-06-13 22:56 UTCEG score recompute
  49. 2026-06-13 22:56 UTCGHSA enrichment
  50. 2026-06-12 23:12 UTCEPSS rescore
  51. 2026-06-12 23:12 UTCEPSS rescore
  52. 2026-06-12 21:07 UTCEG score recompute
  53. 2026-06-12 21:07 UTCGHSA enrichment
  54. 2026-06-11 19:17 UTCEG score recompute
  55. 2026-06-11 19:17 UTCGHSA enrichment
  56. 2026-06-11 14:00 UTCEPSS rescore
  57. 2026-06-10 22:19 UTCEPSS rescore
  58. 2026-06-10 17:28 UTCEG score recompute
  59. 2026-06-10 17:28 UTCGHSA enrichment
  60. 2026-06-10 13:22 UTCEPSS rescore
  61. 2026-06-10 13:22 UTCEPSS rescore
  62. 2026-06-09 15:39 UTCEG score recompute
  63. 2026-06-09 15:39 UTCGHSA enrichment
  64. 2026-06-08 14:17 UTCEPSS rescore
  65. 2026-06-08 14:17 UTCEPSS rescore
  66. 2026-06-08 13:50 UTCEG score recompute▼ 3.40
  67. 2026-06-08 13:50 UTCGHSA enrichment
  68. 2026-06-08 02:32 UTCEG score recompute
  69. 2026-06-08 02:32 UTCGHSA enrichment
  70. 2026-06-07 15:25 UTCEPSS rescore
  71. 2026-06-07 15:25 UTCEPSS rescore
  72. 2026-06-07 15:14 UTCEG score recompute
  73. 2026-06-07 15:14 UTCGHSA enrichment
  74. 2026-06-07 03:56 UTCEG score recompute
  75. 2026-06-07 03:56 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49198?
CVE-2026-49198 is a medium vulnerability published on May 29, 2026. Improper access control in the MQTT broker allows wildcard topic subscriptions, exposing all MQTT traffic to unauthorized actors.
When was CVE-2026-49198 disclosed?
CVE-2026-49198 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49198 actively exploited?
CVE-2026-49198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49198?
CVE-2026-49198 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2026-49198?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49198, 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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