CVE-2026-15511

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-13. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

A vulnerability was determined in Comfast CF-WR631AX V3 up to 2.7.0.8. Affected by this vulnerability is the function system_wl_upload_pic_file of the file /usr/bin/webmgnt of the component FastCGI Backend. This manipulation of the argument filename causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
5%
EPSS %ILE
91%
KEV
Not listed

Published

July 12, 2026

Last Modified

July 14, 2026

Advisory Details (1)

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

cve/Command Injection in Comfast CF-WR631AX V3 — WiFi Portal Image Upload (CWE-78) at main · luminarydawn/cve · GitHub

https://github.com/luminarydawn/cve/tree/main/Command%20Injection%20in%20Comfast%20CF-WR631AX%20V3%20%E2%80%94%20WiFi%20Portal%20Image%20Upload%20(CWE-78)

Vendor Advisories for CVE-2026-15511(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 33× in last 7d / 213× 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 300 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15511?
CVE-2026-15511 is a critical vulnerability published on July 12, 2026. A vulnerability was determined in Comfast CF-WR631AX V3 up to 2.7.0.8. Affected by this vulnerability is the function systemwluploadpicfile of the file /usr/bin/webmgnt of the component FastCGI Backend. This manipulation of the argument filename causes os command injection. It is possible to…
When was CVE-2026-15511 disclosed?
CVE-2026-15511 was first published in the National Vulnerability Database on July 12, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15511 actively exploited?
CVE-2026-15511 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 8.8% of all scored CVEs.
What is the CVSS score of CVE-2026-15511?
CVE-2026-15511 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-15511?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15511, 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-2026-15511

Explore →

Is Your Infrastructure Affected by CVE-2026-15511?

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

Start Free Scan →Browse All CVEs