CVE-2020-14472
On Draytek Vigor3900, Vigor2960, and Vigor 300B devices before 1.5.1.1, there are some command-injection vulnerabilities in the mainfunction.cgi file.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
On Draytek Vigor3900, Vigor2960, and Vigor 300B devices before 1.5.1.1, there are some command-injection vulnerabilities in the mainfunction.cgi file.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.93% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- draytek/vigor300b firmware · draytek/vigor2960 firmware · draytek/vigor3900 firmware
- Source
- cve@mitre.org
EPSS 2.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://gist.github.com/Cossack9989/fa9718434ceee4e6d4f6b0ad672c10f1Exploit, Third Party Advisory
- https://gist.github.com/WinMin/46165779215f1d47ec257210428c0240Exploit, Third Party Advisory
- https://gist.github.com/Cossack9989/fa9718434ceee4e6d4f6b0ad672c10f1Exploit, Third Party Advisory
- https://gist.github.com/WinMin/46165779215f1d47ec257210428c0240Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.