DrayTek
Mainfunction.cgi app_guest_export path traversal
Not on CISA's list of exploited flaws, and not in the news we track.
CVE-2026-129451Critical9.9
Reading the vendor advisory
Black Shard's team can check your exposure to CVE-2026-129451 and take the fix off your plate.
A flaw has been found in DrayTek Vigor2960 up to 1.5.1.6. This affects the function app_guest_export of the file /cgi-bin/mainfunction.cgi. This manipulation of the argument filename causes path traversal. The attack can be initiated remotely. The exploit has been published and may be used. Upgrading to version 1.5.1.7 is able to mitigate this issue. The affected component should be upgraded. The vendor recommends: "1.5.1.6 isn't the latest version of 2960, the latest version fixes many security issues. And we have another one in our release plan which should solve the issues reported."
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Severity
9.9of 10, critical
Updated 15 Nov 2026, 14:43 UTC, 32 of 36 sources answering.
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