Vigor300b Firmware vulnerabilities

6 known vulnerabilities in Vigor300b Firmware from DrayTek. 6 are rated high or critical, and 3 have been exploited in real attacks. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 7.2 High severity

  Vigor 300B: Improper Neutralization of Special Elements used in an OS Command

  CVE-2026-3040Feb 23, 2026DrayTekEPSS 10.1%

  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 inje

• 9.8 Critical severity

  DrayTek Vigor Routers OS Command Injection Exploited

  CVE-2024-12987Dec 27, 2024DrayTekEPSS 98.2%

  A vulnerability, which was classified as critical, was found in DrayTek Vigor2960 and Vigor300B 1.5.1.4. Affected is an unknown function of the file /cgi-bin/mainfunction.cgi/apmcfgupload of the component Web Management Interface. The manipulation of the argum

• 9.8 Critical severity

  Vigor2960: Improper Neutralization of Special Elements used in a Command

  CVE-2024-12986Dec 27, 2024DrayTekEPSS 35.5%

  A vulnerability, which was classified as critical, has been found in DrayTek Vigor2960 and Vigor300B 1.5.1.3/1.5.1.4. This issue affects some unknown processing of the file /cgi-bin/mainfunction.cgi/apmcfgupptim of the component Web Management Interface. The m

• 8.0 High severity

  vigor3900_firmware: Improper Neutralization of Special Elements used in a Command

  CVE-2024-43027Aug 21, 2024DrayTekEPSS 1.3%

  DrayTek Vigor 3900 before v1.5.1.5_Beta, DrayTek Vigor 2960 before v1.5.1.5_Beta and DrayTek Vigor 300B before v1.5.1.5_Beta were discovered to contain a command injection vulnerability via the action parameter at cgi-bin/mainfunction.cgi.

• 9.8 Critical severity

  DrayTek Multiple Vigor Routers OS Command Injection Exploited

  CVE-2020-15415Jun 30, 2020DrayTekEPSS 84.5%

  On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-202

• 9.8 Critical severity

  Multiple DrayTek Vigor Routers Web Management Page Exploited

  CVE-2020-8515Feb 1, 2020DrayTekEPSS 100%

  DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta, and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta devices allow remote code execution as root (without authentication) via shell metacharacters to the cgi-bin/mainfunction.cgi URI. This issue has been fi