CVE-2026-49191

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-04. 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

June 4, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

Security Advisory: Upcoming Firmware Update for Acer Connect M6E 5G Portable WiFi Router - Acer Community

https://community.acer.com/en/kb/articles/19707

Vendor Advisories for CVE-2026-49191(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 19× in last 7d / 67× 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 241 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49191?
CVE-2026-49191 is a critical vulnerability published on June 4, 2026. The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through verbose error handling pages.
When was CVE-2026-49191 disclosed?
CVE-2026-49191 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49191 actively exploited?
CVE-2026-49191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.5% of all scored CVEs.
What is the CVSS score of CVE-2026-49191?
CVE-2026-49191 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-49191?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49191, 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-2026-49191

Explore →

Is Your Infrastructure Affected by CVE-2026-49191?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs