Skip to content
Fencer Intel
critical 9.8

CVE-2020-14472 json

On Draytek Vigor3900, Vigor2960, and Vigor 300B devices before 1.5.1.1, there are some command-injection vulnerabilities in the mainfunctio…

published 6y ago modified 4mo ago also EUVD-2020-6609

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

On Draytek Vigor3900, Vigor2960, and Vigor 300B devices before 1.5.1.1, there are some command-injection vulnerabilities in the mainfunction.cgi file.

Patch / fix

  • draytek vigor300b_firmware 1.5.1.1
  • draytek vigor2960_firmware 1.5.1.1
  • draytek vigor3900_firmware 1.5.1.1

Is CVE-2020-14472 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

2.93% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • gist.github.com https://gist.github.com/WinMin/46165779215f1d47ec257210428c0240 referenced PoC, tagged "exploit" by a source, unverified
  • gist.github.com https://gist.github.com/Cossack9989/fa9718434ceee4e6d4f6b0ad672c10f1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.