CVE-2026-15511 (GCVE-0-2026-15511)

Vulnerability from cvelistv5 – Published: 2026-07-12 23:00 – Updated: 2026-07-12 23:00
VLAI
Title
Comfast CF-WR631AX V3 FastCGI Backend webmgnt system_wl_upload_pic_file os command injection
Summary
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.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/377840 vdb-entrytechnical-description
https://vuldb.com/vuln/377840/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15511 third-party-advisory
https://vuldb.com/submit/846719 third-party-advisory
https://github.com/luminarydawn/cve/tree/main/Com… exploit
Impacted products
Vendor Product Version
Comfast CF-WR631AX V3 Affected: 2.7.0.0
Affected: 2.7.0.1
Affected: 2.7.0.2
Affected: 2.7.0.3
Affected: 2.7.0.4
Affected: 2.7.0.5
Affected: 2.7.0.6
Affected: 2.7.0.7
Affected: 2.7.0.8
    cpe:2.3:a:comfast:cf-wr631ax_v3:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
luminarydawn (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
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          "cpes": [
            "cpe:2.3:a:comfast:cf-wr631ax_v3:*:*:*:*:*:*:*:*"
          ],
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          ],
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          "vendor": "Comfast",
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        }
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        "shortName": "VulDB"
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          "tags": [
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            "permissions-required"
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          "tags": [
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        },
        {
          "name": "Submit #846719 | Comfast (Shenzhen Four Seas Global Link Network Technology Co.,  CF-WR631AX V3 V2.7.0.8 OS Command Injection",
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          "url": "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)"
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          "value": "VulDB entry created"
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          "lang": "en",
          "time": "2026-07-12T08:05:16.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Comfast CF-WR631AX V3 FastCGI Backend webmgnt system_wl_upload_pic_file os command injection"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-15511",
    "datePublished": "2026-07-12T23:00:09.820Z",
    "dateReserved": "2026-07-12T06:00:12.846Z",
    "dateUpdated": "2026-07-12T23:00:09.820Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-15511",
      "date": "2026-07-13",
      "epss": "0.0269",
      "percentile": "0.84129"
    },
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  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.