CVE-2026-71925

DrayTek VigorSwitch Multiple Models OS Command Injection via getDetail

HIGH

7.2

CVSS Score

Published: August 24, 2026 at 05:07 PM UTC

Updated: October 12, 2026 at 10:10 PM UTC

42 products affected across 1 vendorVigorswitch Q2200X FirmwareVigorswitch PQ2121X FirmwareVigorswitch PQ2200XB Firmware

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Severity

HIGH7.2

Exploit prediction

EPSS 2%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vigorswitch FX2120 Firmware · Draytek

95%

v < 3.9.10

Affected range stops below 3.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch G1282 Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch G2100 Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch G2121 Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch G2280X Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch G2540XS Firmware · Draytek

95%

v < 3.9.10

Affected range stops below 3.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch P1282 Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch P2100 Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch P2280X Firmware · Draytek

95%

v < 2.9.10

Affected range stops below 2.9.10, so it looks safe — our inference, not a vendor statement

Vigorswitch P2540XS Firmware · Draytek

95%

v < 3.9.10

Affected range stops below 3.9.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/

References (2)

Vendor Advisory

Source: cverecord

https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/

Third Party Advisory

Source: cverecord

https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-os-command-injection-via-getdetail

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHVulnCheck

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-78

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