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Fencer Vulns
high 7.2

CVE-2026-71925 json

DrayTek VigorSwitch Multiple Models OS Command Injection via getDetail

published 2026-08-24 2 mo ago modified 2026-10-12 27 d ago also EUVD-2026-64984

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the getDetail function. The vulnerability is caused by insufficient filtering of the username and password fields before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.

Patch / fix

  • DrayTek Corporation VigorSwitch G2540xs 3.9.10
  • DrayTek Corporation VigorSwitch P2540xs 3.9.10
  • DrayTek Corporation VigorSwitch FX2120 3.9.10
  • DrayTek Corporation VigorSwitch G2282x 2.10.6
  • DrayTek Corporation VigorSwitch P2282x 2.10.6
  • DrayTek Corporation VigorSwitch Q2300x 2.10.7
  • DrayTek Corporation VigorSwitch PQ2300xb 2.10.7
  • DrayTek Corporation VigorSwitch G2542x 3.10.6
  • DrayTek Corporation VigorSwitch P2542x 3.10.6
  • DrayTek Corporation VigorSwitch P2542xh 3.10.6
  • DrayTek Corporation VigorSwitch PX2060 2.9.10
  • DrayTek Corporation VigorSwitch G1280 2.9.10
  • DrayTek Corporation VigorSwitch P1280 2.9.10
  • DrayTek Corporation VigorSwitch P1281x 2.9.10
  • DrayTek Corporation VigorSwitch G1282 2.9.10
  • DrayTek Corporation VigorSwitch P1282 2.9.10
  • DrayTek Corporation VigorSwitch G2121 2.9.10
  • DrayTek Corporation VigorSwitch P2121 2.9.10
  • DrayTek Corporation VigorSwitch PQ2121x 2.9.10
  • DrayTek Corporation VigorSwitch Q2121x 2.9.10
  • DrayTek Corporation VigorSwitch G2280x 2.9.10
  • DrayTek Corporation VigorSwitch P2280x 2.9.10
  • DrayTek Corporation VigorSwitch Q2200x 2.9.10
  • DrayTek Corporation VigorSwitch PQ2200xb 2.9.10
  • DrayTek Corporation VigorSwitch G2100 2.9.10
  • DrayTek Corporation VigorSwitch P2100 2.9.10
  • DrayTek Corporation VigorSwitch G2540x 2.9.10
  • DrayTek Corporation VigorSwitch P2540x 2.9.10

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 mo ago

Exploit prediction

2.27% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • DrayTek Corporation VigorSwitch G2540xs
  • DrayTek Corporation VigorSwitch P2540xs
  • DrayTek Corporation VigorSwitch FX2120
  • DrayTek Corporation VigorSwitch G2282x
  • DrayTek Corporation VigorSwitch P2282x
  • DrayTek Corporation VigorSwitch Q2300x
  • DrayTek Corporation VigorSwitch PQ2300xb
  • DrayTek Corporation VigorSwitch G2542x
  • DrayTek Corporation VigorSwitch P2542x
  • DrayTek Corporation VigorSwitch P2542xh
  • DrayTek Corporation VigorSwitch PX2060
  • DrayTek Corporation VigorSwitch G1280
  • DrayTek Corporation VigorSwitch P1280
  • DrayTek Corporation VigorSwitch P1281x
  • DrayTek Corporation VigorSwitch G1282
  • DrayTek Corporation VigorSwitch P1282
  • DrayTek Corporation VigorSwitch G2121
  • DrayTek Corporation VigorSwitch P2121
  • DrayTek Corporation VigorSwitch PQ2121x
  • DrayTek Corporation VigorSwitch Q2121x
  • DrayTek Corporation VigorSwitch G2280x
  • DrayTek Corporation VigorSwitch P2280x
  • DrayTek Corporation VigorSwitch Q2200x
  • DrayTek Corporation VigorSwitch PQ2200xb
  • DrayTek Corporation VigorSwitch G2100
  • DrayTek Corporation VigorSwitch P2100
  • DrayTek Corporation VigorSwitch G2540x
  • DrayTek Corporation VigorSwitch P2540x

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns 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.