# DrayTek VigorSwitch Multiple Models OS Command Injection via sysreboot

CVE record · `CVE-2026-71919`

- **Identifiers:** `CVE-2026-71919`
- **State:** Confirmed
- **Severity:** CVSS 8.6 High
- **Critical:** No
- **CNA:** VulnCheck
- **Weakness (CWE):** [CWE-78](https://cwe.mitre.org/data/definitions/78.html)
- **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md)
- **Technologies:** [DrayTek Corporation VigorSwitch G2540xs](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-g2540xs.md) · [DrayTek Corporation VigorSwitch P2540xs](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p2540xs.md) · [DrayTek Corporation VigorSwitch FX2120](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-fx2120.md) · [DrayTek Corporation VigorSwitch G2282x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-g2282x.md) · [DrayTek Corporation VigorSwitch P2282x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p2282x.md) · [DrayTek Corporation VigorSwitch Q2300x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-q2300x.md) · [DrayTek Corporation VigorSwitch PQ2300xb](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-pq2300xb.md) · [DrayTek Corporation VigorSwitch G2542x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-g2542x.md) · [DrayTek Corporation VigorSwitch P2542x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p2542x.md) · [DrayTek Corporation VigorSwitch P2542xh](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p2542xh.md) · [DrayTek Corporation VigorSwitch PX2060](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-px2060.md) · [DrayTek Corporation VigorSwitch G1280](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-g1280.md) · [DrayTek Corporation VigorSwitch P1280](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p1280.md) · [DrayTek Corporation VigorSwitch P1281x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p1281x.md) · [DrayTek Corporation VigorSwitch G1282](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-g1282.md) · [DrayTek Corporation VigorSwitch P1282](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p1282.md) · [DrayTek Corporation VigorSwitch G2121](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-g2121.md) · [DrayTek Corporation VigorSwitch P2121](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-p2121.md) · [DrayTek Corporation VigorSwitch PQ2121x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-pq2121x.md) · [DrayTek Corporation VigorSwitch Q2121x](https://agentprime.io/advisories/technology/draytek-corporation-vigorswitch-q2121x.md)
- **Published:** 24 Aug 2026
- **Updated:** 24 Aug 2026
- **Reviewed by a person:** No

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: DrayTek Corporation. Product: VigorSwitch G2540xs.
  - affected: `before 3.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2540xs.
  - affected: `before 3.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch FX2120.
  - affected: `before 3.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G2282x.
  - affected: `before 2.10.6` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2282x.
  - affected: `before 2.10.6` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch Q2300x.
  - affected: `before 2.10.7` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch PQ2300xb.
  - affected: `before 2.10.7` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G2542x.
  - affected: `before 3.10.6` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2542x.
  - affected: `before 3.10.6` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2542xh.
  - affected: `before 3.10.6` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch PX2060.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G1280.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P1280.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P1281x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G1282.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P1282.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G2121.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2121.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch PQ2121x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch Q2121x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G2280x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2280x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch Q2200x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch PQ2200xb.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G2100.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2100.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch G2540x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected
- Vendor: DrayTek Corporation. Product: VigorSwitch P2540x.
  - affected: `before 2.9.10` (custom)
  - Other versions: unaffected

## 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

- 8.6 High, CVSS 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`, from CNA (VulnCheck) (used for this record)
- 7.2 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`, from 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

- [CVE List: CVE-2026-71919](https://www.cve.org/CVERecord?id=CVE-2026-71919)
- [NVD: CVE-2026-71919](https://nvd.nist.gov/vuln/detail/CVE-2026-71919)

### References from the CNA

- <https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/> (vendor-advisory)
- <https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-os-command-injection-via-sysreboot> (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.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-71919>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-71919/>. Everything for agents: <https://agentprime.io/llms.txt>.