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NVD Vulnerability Details :
CVE-2026-3040
Analyzed
More InfoOfficial Page
Source-cna@vuldb.com
View Known Exploited Vulnerability (KEV) details
Published At-23 Feb, 2026 | 22:16
Updated At-26 Feb, 2026 | 16:11

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.05.1MEDIUM
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.14.7MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Primary3.17.2HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Secondary2.05.8MEDIUM
AV:N/AC:L/Au:M/C:P/I:P/A:P
Type: Secondary
Version: 4.0
Base score: 5.1
Base severity: MEDIUM
Vector:
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 4.7
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Type: Primary
Version: 3.1
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 2.0
Base score: 5.8
Base severity: MEDIUM
Vector:
AV:N/AC:L/Au:M/C:P/I:P/A:P
CPE Matches
DrayTek Corp.
draytek
>>vigor300b_firmware>>Versions up to 1.5.1.6(inclusive)
cpe:2.3:o:draytek:vigor300b_firmware:*:*:*:*:*:*:*:*
DrayTek Corp.
draytek
>>vigor300b>>-
cpe:2.3:h:draytek:vigor300b:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-77Primarycna@vuldb.com
CWE-78Primarycna@vuldb.com
CWE-78Primarynvd@nist.gov
CWE ID: CWE-77
Type: Primary
Source: cna@vuldb.com
CWE ID: CWE-78
Type: Primary
Source: cna@vuldb.com
CWE ID: CWE-78
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/master-abc/cve/issues/42cna@vuldb.com
Exploit
Issue Tracking
https://vuldb.com/?ctiid.347394cna@vuldb.com
Permissions Required
Third Party Advisory
VDB Entry
https://vuldb.com/?id.347394cna@vuldb.com
Third Party Advisory
VDB Entry
https://vuldb.com/?submit.757126cna@vuldb.com
Third Party Advisory
VDB Entry
Hyperlink: https://github.com/master-abc/cve/issues/42
Source: cna@vuldb.com
Resource:
Exploit
Issue Tracking
Hyperlink: https://vuldb.com/?ctiid.347394
Source: cna@vuldb.com
Resource:
Permissions Required
Third Party Advisory
VDB Entry
Hyperlink: https://vuldb.com/?id.347394
Source: cna@vuldb.com
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://vuldb.com/?submit.757126
Source: cna@vuldb.com
Resource:
Third Party Advisory
VDB Entry
Change History
0Changes found
Details not found