CVE-2026-19979: Authorization Bypass in GL.iNet A1300
CVE-2026-19979 is an authorization bypass vulnerability affecting multiple GL.iNet router models up to version 4.8.x. The flaw exists in the WebDAV Service's COPY/MOVE function, allowing remote attackers to bypass authorization controls. The vendor has confirmed the vulnerability's existence. No official patch or remediation guidance has been provided yet. The vulnerability has a medium severity with a CVSS score of 6.9.
AI Analysis
Technical Summary
This vulnerability impacts the WebDAV Service component in various GL.iNet router models (including A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E5800, MT2500, MT3000, MT3600BE, MT5000, MT6000, X2000, X3000, and XE3000) running firmware versions 4.0 through 4.8. The issue is an authorization bypass triggered via the COPY/MOVE functions of the WebDAV Service, which can be exploited remotely without authentication. The vendor has acknowledged the vulnerability but has not yet released a patch or official remediation instructions.
Potential Impact
Successful exploitation of this vulnerability allows remote attackers to bypass authorization controls on the affected devices via the WebDAV Service's COPY/MOVE functions. This could lead to unauthorized access or manipulation of files or configurations accessible through WebDAV. The CVSS 4.0 base score is 6.9, indicating a medium severity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the WebDAV Service from untrusted networks if possible. Monitor vendor communications for updates on patches or mitigations.
CVE-2026-19979: Authorization Bypass in GL.iNet A1300
Description
CVE-2026-19979 is an authorization bypass vulnerability affecting multiple GL.iNet router models up to version 4.8.x. The flaw exists in the WebDAV Service's COPY/MOVE function, allowing remote attackers to bypass authorization controls. The vendor has confirmed the vulnerability's existence. No official patch or remediation guidance has been provided yet. The vulnerability has a medium severity with a CVSS score of 6.9.
CVSS v4.0
Score 6.9medium
Affected software
pkg:github/gl-inet/a1300cpe:2.3:a:gl.inet:a1300:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:ax1800:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:axt1800:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:be1400:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:be3600:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:be6500:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability impacts the WebDAV Service component in various GL.iNet router models (including A1300, AX1800, AXT1800, BE1400, BE3600, BE6500, BE9300, BE10000, E5800, MT2500, MT3000, MT3600BE, MT5000, MT6000, X2000, X3000, and XE3000) running firmware versions 4.0 through 4.8. The issue is an authorization bypass triggered via the COPY/MOVE functions of the WebDAV Service, which can be exploited remotely without authentication. The vendor has acknowledged the vulnerability but has not yet released a patch or official remediation instructions.
Potential Impact
Successful exploitation of this vulnerability allows remote attackers to bypass authorization controls on the affected devices via the WebDAV Service's COPY/MOVE functions. This could lead to unauthorized access or manipulation of files or configurations accessible through WebDAV. The CVSS 4.0 base score is 6.9, indicating a medium severity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the WebDAV Service from untrusted networks if possible. Monitor vendor communications for updates on patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-16T13:38:11.037Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8282f6bf8831d53928bb33
Added to database: 08/17/2026, 03:41:42 UTC
Last enriched: 08/17/2026, 03:59:30 UTC
Last updated: 08/17/2026, 04:01:03 UTC
Views: 4
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