CVE-2026-77004

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: LOW) published 2026-08-20. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.4Exploit: Elevated riskExposed: 0

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

A flaw has been found in Comfast CF-N1-S 2.6.0.1. This impacts the function sprintf of the file /cgi-bin/mbox-config?method=SET§ion=ptest_sn. Executing a manipulation of the argument sn can lead to command injection. The attack can be launched remotely. The exploit has been published and may be used.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity74% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
69%
KEV
Not listed

Published

August 20, 2026

Last Modified

August 24, 2026

Advisory Details (1)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

-/厂商comefast CF-N1-S V2.pdf at main · lxiansheng488-bit/- · GitHub

https://github.com/lxiansheng488-bit/-/blob/main/%E5%8E%82%E5%95%86comefast%20%20CF-N1-S%20V2.pdf

Vendor Advisories for CVE-2026-77004(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 108× 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 122 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77004?
CVE-2026-77004 is a high vulnerability published on August 20, 2026. A flaw has been found in Comfast CF-N1-S 2.6.0.1. This impacts the function sprintf of the file /cgi-bin/mbox-config?method=SET&section=ptest_sn. Executing a manipulation of the argument sn can lead to command injection. The attack can be launched remotely. The exploit has been published and may be…
When was CVE-2026-77004 disclosed?
CVE-2026-77004 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77004 actively exploited?
CVE-2026-77004 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 31.2% of all scored CVEs.
What is the CVSS score of CVE-2026-77004?
CVE-2026-77004 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-77004?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77004, 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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