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 — 5 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.8Exploit: NoneExposed: 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)
EPSS
84.1%
KEV
Not listed

Published

July 12, 2026

Last Modified

July 14, 2026

Advisory Details (1)

Auto-updated Jul 13, 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 28× in last 7d / 28× 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. 2026-07-14 17:36 UTCEG score recompute
  2. 2026-07-14 17:36 UTCGHSA enrichment
  3. 2026-07-14 15:20 UTCNVD updateCVSS v4 → 8.9
  4. 2026-07-14 15:05 UTCMITRE cvelistV5CVSS v4 → 9.3
  5. 2026-07-14 13:47 UTCEG score recompute
  6. 2026-07-14 13:47 UTCGHSA enrichment
  7. 2026-07-14 09:57 UTCEG score recompute
  8. 2026-07-14 09:57 UTCGHSA enrichment
  9. 2026-07-14 06:07 UTCEG score recompute
  10. 2026-07-14 06:06 UTCGHSA enrichment
  11. 2026-07-14 02:14 UTCEG score recompute
  12. 2026-07-14 02:14 UTCGHSA enrichment
  13. 2026-07-13 22:30 UTCEPSS rescore
  14. 2026-07-13 22:23 UTCEG score recompute
  15. 2026-07-13 22:23 UTCGHSA enrichment
  16. 2026-07-13 18:33 UTCEG score recompute
  17. 2026-07-13 18:33 UTCGHSA enrichment
  18. 2026-07-13 14:43 UTCEG score recompute
  19. 2026-07-13 14:43 UTCGHSA enrichment
  20. 2026-07-13 10:53 UTCEG score recompute
  21. 2026-07-13 10:53 UTCGHSA enrichment
  22. 2026-07-13 07:02 UTCEG score recompute
  23. 2026-07-13 07:02 UTCGHSA enrichment
  24. 2026-07-13 03:10 UTCEG score recompute
  25. 2026-07-13 03:10 UTCGHSA enrichment
Show 3 more
  1. 2026-07-13 00:07 UTCNVD updateCVSS v4 → 8.9
  2. 2026-07-12 23:18 UTCEG score recompute
  3. 2026-07-12 23:17 UTCMITRE cvelistV5first tracked

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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 84.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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