CVE-2026-3040 (GCVE-0-2026-3040)

Vulnerability from cvelistv5 – Published: 2026-02-23 22:02 – Updated: 2026-02-23 22:02 Unsupported When Assigned
VLAI?
Title
DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection
Summary
A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that "300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it." This vulnerability only affects products that are no longer supported by the maintainer.
Severity ?
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.7 (Medium)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CWE
Assigner
References
https://vuldb.com/?id.347394 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347394 signaturepermissions-required
https://vuldb.com/?submit.757126 third-party-advisory
https://github.com/master-abc/cve/issues/42 exploitissue-tracking
Impacted products
Vendor Product Version
DrayTek Vigor 300B Affected: 1.5.1.0
Affected: 1.5.1.1
Affected: 1.5.1.2
Affected: 1.5.1.3
Affected: 1.5.1.4
Affected: 1.5.1.5
Affected: 1.5.1.6
Create a notification for this product.
Credits
jiefengliang (VulDB User)
Show details on NVD website
To clipboard 

{
  "containers": {
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      "affected": [
        {
          "modules": [
            "Web Management Interface"
          ],
          "product": "Vigor 300B",
          "vendor": "DrayTek",
          "versions": [
            {
              "status": "affected",
              "version": "1.5.1.0"
            },
            {
              "status": "affected",
              "version": "1.5.1.1"
            },
            {
              "status": "affected",
              "version": "1.5.1.2"
            },
            {
              "status": "affected",
              "version": "1.5.1.3"
            },
            {
              "status": "affected",
              "version": "1.5.1.4"
            },
            {
              "status": "affected",
              "version": "1.5.1.5"
            },
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            }
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          "type": "reporter",
          "value": "jiefengliang (VulDB User)"
        }
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        }
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
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          "name": "VDB-347394 | DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection",
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          "url": "https://vuldb.com/?id.347394"
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        {
          "name": "VDB-347394 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
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          "url": "https://vuldb.com/?ctiid.347394"
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          "tags": [
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      "tags": [
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          "value": "VulDB entry created"
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          "time": "2026-02-23T17:39:13.000Z",
          "value": "VulDB entry last update"
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      ],
      "title": "DrayTek Vigor 300B Web Management uploadlangs cgiGetFile os command injection"
    }
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  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-3040",
    "datePublished": "2026-02-23T22:02:07.526Z",
    "dateReserved": "2026-02-23T16:34:06.326Z",
    "dateUpdated": "2026-02-23T22:02:07.526Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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Sightings

Author Source Type Date

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.



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