CVE record · CVE-2026-71923

DrayTek VigorSwitch Multiple Models OS Command Injection via auth_set

CVSS 8.6 HighEPSS 0.023 · 83rd percentile

Published by the CVE Program (CNA: VulnCheck) at 24 Aug 2026, 17:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
DrayTek Corporation	VigorSwitch G2540xs	affected before 3.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2540xs	affected before 3.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch FX2120	affected before 3.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G2282x	affected before 2.10.6 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2282x	affected before 2.10.6 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch Q2300x	affected before 2.10.7 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch PQ2300xb	affected before 2.10.7 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G2542x	affected before 3.10.6 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2542x	affected before 3.10.6 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2542xh	affected before 3.10.6 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch PX2060	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G1280	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P1280	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P1281x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G1282	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P1282	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G2121	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2121	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch PQ2121x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch Q2121x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G2280x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2280x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch Q2200x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch PQ2200xb	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G2100	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2100	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch G2540x	affected before 2.9.10 custom Other versions: unaffected
DrayTek Corporation	VigorSwitch P2540x	affected before 2.9.10 custom Other versions: unaffected

Identifiers: CVE-2026-71923
CNA: VulnCheck
Weakness (CWE): CWE-78
Tags: 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
Command injection
Published: 24 Aug 2026
Updated: 26 Aug 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.6	High	4.0	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 (VulnCheck)Used for this record
7.2	High	3.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.023, the 83rd percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 24 Aug 2026. New records show when each source confirmed them.

Sources

References from the CNA

www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/ vendor-advisory
www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-os-command-injection-via-auth-set third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.