CVE-2026-49199

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-29. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

Crafted MQTT messages can trigger command injection, resulting in root-level code execution on the target device.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
68.0%
KEV
Not listed

Published

May 29, 2026

Last Modified

June 4, 2026

Advisory Details (1)

Auto-updated Jun 20, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

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

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

Vendor Advisories for CVE-2026-49199(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 / 134× 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 339 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49199?
CVE-2026-49199 is a critical vulnerability published on May 29, 2026. Crafted MQTT messages can trigger command injection, resulting in root-level code execution on the target device.
When was CVE-2026-49199 disclosed?
CVE-2026-49199 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49199 actively exploited?
CVE-2026-49199 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 68.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49199?
CVE-2026-49199 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-49199?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49199, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-49199

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