CVE-2026-15511

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH 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: 3%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(high)
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
3%
EPSS %ILE
84%
KEV
Not listed

Published

July 12, 2026

Last Modified

July 14, 2026

Advisory Details (1)

Auto-updated Jul 25, 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 29× in last 7d / 69× 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.

  1. 2026-07-29 00:53 UTCGHSA enrichment
  2. 2026-07-28 21:01 UTCGHSA enrichment
  3. 2026-07-28 17:11 UTCEG score recompute
  4. 2026-07-28 17:11 UTCGHSA enrichment
  5. 2026-07-28 15:36 UTCEPSS rescore
  6. 2026-07-28 12:10 UTCGHSA enrichment
  7. 2026-07-28 08:09 UTCGHSA enrichment
  8. 2026-07-28 04:18 UTCGHSA enrichment
  9. 2026-07-28 00:29 UTCGHSA enrichment
  10. 2026-07-27 19:53 UTCGHSA enrichment
  11. 2026-07-27 15:27 UTCEG score recompute
  12. 2026-07-27 15:27 UTCGHSA enrichment
  13. 2026-07-27 14:13 UTCEPSS rescore
  14. 2026-07-27 11:17 UTCGHSA enrichment
  15. 2026-07-27 07:27 UTCGHSA enrichment
  16. 2026-07-27 03:35 UTCGHSA enrichment
  17. 2026-07-26 23:29 UTCGHSA enrichment
  18. 2026-07-26 19:39 UTCGHSA enrichment
  19. 2026-07-26 15:49 UTCEG score recompute
  20. 2026-07-26 15:49 UTCGHSA enrichment
  21. 2026-07-26 14:54 UTCEPSS rescore
  22. 2026-07-26 14:54 UTCEPSS rescore
  23. 2026-07-26 12:00 UTCEG score recompute
  24. 2026-07-26 12:00 UTCGHSA enrichment
  25. 2026-07-25 14:17 UTCEPSS rescore
Show 44 more
  1. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:05 UTCEG score recompute
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-21 15:24 UTCEPSS rescore
  6. 2026-07-20 17:08 UTCEPSS rescore
  7. 2026-07-19 14:30 UTCEPSS rescore
  8. 2026-07-19 02:28 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-17 03:10 UTCGHSA enrichment
  11. 2026-07-16 23:20 UTCGHSA enrichment
  12. 2026-07-16 19:30 UTCGHSA enrichment
  13. 2026-07-16 17:02 UTCEPSS rescore
  14. 2026-07-16 15:37 UTCGHSA enrichment
  15. 2026-07-16 11:47 UTCGHSA enrichment
  16. 2026-07-16 07:57 UTCGHSA enrichment
  17. 2026-07-16 04:07 UTCGHSA enrichment
  18. 2026-07-16 00:18 UTCGHSA enrichment
  19. 2026-07-15 20:28 UTCGHSA enrichment
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 16:39 UTCGHSA enrichment
  22. 2026-07-15 12:49 UTCGHSA enrichment
  23. 2026-07-15 08:58 UTCGHSA enrichment
  24. 2026-07-15 05:06 UTCGHSA enrichment
  25. 2026-07-15 02:00 UTCEPSS rescore
  26. 2026-07-15 01:16 UTCGHSA enrichment
  27. 2026-07-14 21:26 UTCGHSA enrichment
  28. 2026-07-14 17:36 UTCGHSA enrichment
  29. 2026-07-14 15:20 UTCNVD updateCVSS v4 → 8.9
  30. 2026-07-14 15:05 UTCMITRE cvelistV5CVSS v4 → 9.3
  31. 2026-07-14 13:47 UTCGHSA enrichment
  32. 2026-07-14 09:57 UTCGHSA enrichment
  33. 2026-07-14 06:06 UTCGHSA enrichment
  34. 2026-07-14 02:14 UTCGHSA enrichment
  35. 2026-07-13 22:30 UTCEPSS rescore
  36. 2026-07-13 22:23 UTCGHSA enrichment
  37. 2026-07-13 18:33 UTCGHSA enrichment
  38. 2026-07-13 14:43 UTCGHSA enrichment
  39. 2026-07-13 10:53 UTCGHSA enrichment
  40. 2026-07-13 07:02 UTCGHSA enrichment
  41. 2026-07-13 03:10 UTCGHSA enrichment
  42. 2026-07-13 00:07 UTCNVD updateCVSS v4 → 8.9
  43. 2026-07-12 23:18 UTCEG score recompute
  44. 2026-07-12 23:17 UTCMITRE cvelistV5first tracked

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 3% probability of exploitation in the next 30 days, which ranks it in the top 16.1% 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

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