CVE-2026-49201

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
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 upload.cgi binary, responsible for processing device backups, contains a hardcoded AES encryption key. This allows an attacker to decrypt, modify, and re-encrypt system backups, facilitating persistent backdoor injection.

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
18%
KEV
Not listed

Published

May 29, 2026

Last Modified

July 21, 2026

Advisory Details (1)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic🔴 Active Exploitation

Security Advisory: Upcoming Firmware Update for Acer Wave 7 Router - Acer Community

https://community.acer.com/en/kb/articles/19673

Vendor Advisories for CVE-2026-49201(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 6× in last 7d / 110× 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 383 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49201?
CVE-2026-49201 is a critical vulnerability published on May 29, 2026. The upload.cgi binary, responsible for processing device backups, contains a hardcoded AES encryption key. This allows an attacker to decrypt, modify, and re-encrypt system backups, facilitating persistent backdoor injection.
When was CVE-2026-49201 disclosed?
CVE-2026-49201 was first published in the National Vulnerability Database on May 29, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49201 actively exploited?
CVE-2026-49201 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 82.2% of all scored CVEs.
What is the CVSS score of CVE-2026-49201?
CVE-2026-49201 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-49201?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49201, 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

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