# Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways

CVE record · `CVE-2026-19683`

- **Identifiers:** `CVE-2026-19683`
- **State:** Confirmed
- **Severity:** CVSS 6.3 Medium
- **Critical:** No
- **CNA:** TPLink
- **Weakness (CWE):** [CWE-319](https://cwe.mitre.org/data/definitions/319.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md)
- **Technologies:** [TP-Link Systems Inc. ER7212PC v2](https://agentprime.io/advisories/technology/tp-link-systems-inc-er7212pc-v2.md) · [TP-Link Systems Inc. ER605 v2](https://agentprime.io/advisories/technology/tp-link-systems-inc-er605-v2.md) · [TP-Link Systems Inc. ER7206 v2](https://agentprime.io/advisories/technology/tp-link-systems-inc-er7206-v2.md) · [TP-Link Systems Inc ER7406 v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er7406-v1.md) · [TP-Link Systems Inc. ER707-M2 v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er707-m2-v1.md) · [TP-Link Systems Inc ER7412-M2 v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er7412-m2-v1.md) · [TP-Link Systems Inc. ER8411 v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er8411-v1.md) · [TP-Link Systems Inc. ER706W v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er706w-v1.md) · [TP-Link Systems Inc. v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-v1.md) · [TP-Link Systems Inc. ER706W-4G v2](https://agentprime.io/advisories/technology/tp-link-systems-inc-er706w-4g-v2.md) · [TP-Link Systems Inc. ER706WP-4G v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er706wp-4g-v1.md) · [TP-Link Systems Inc. ER703WP-4G-Outdoor v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er703wp-4g-outdoor-v1.md) · [TP-Link Systems Inc. DR3220v-4G v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-dr3220v-4g-v1.md) · [TP-Link Systems Inc. DR3650v v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-dr3650v-v1.md) · [TP-Link Systems Inc. DR3650v-4G v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-dr3650v-4g-v1.md) · [TP-Link Systems Inc. ER603WP-4G-Outdoor v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er603wp-4g-outdoor-v1.md) · [TP-Link Systems Inc. DR3150 v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-dr3150-v1.md) · [TP-Link Systems Inc. ER701-5G-Outdoor v1](https://agentprime.io/advisories/technology/tp-link-systems-inc-er701-5g-outdoor-v1.md) · [TP-Link Systems Inc. ER605W v2](https://agentprime.io/advisories/technology/tp-link-systems-inc-er605w-v2.md)
- **Published:** 20 Aug 2026
- **Updated:** 20 Aug 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: TPLink) at 20 Aug 2026, 18:32 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: TP-Link Systems Inc.. Product: ER7212PC v2.
  - affected: `before 2.4.3 Build 20260722 Rel.40250` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER605 v2.
  - affected: `before 2.4.4 Build 20260630 Rel.14398` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER7206 v2.
  - affected: `before 2.3.5 Build 20260625 Rel.43136` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc. Product: ER7406 v1.
  - affected: `before 1.3.4 Build 20260625 Rel.43136` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER707-M2 v1.
  - affected: `before 1.4.4 Build 20260625 Rel.43063` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc. Product: ER7412-M2 v1.
  - affected: `before 1.2.0 Build 20260630 Rel.82947` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER8411 v1.
  - affected: `before 1.4.1 Build 20260708 Rel.64832` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER706W v1.
  - affected: `before 1.2.11 Build 20260723 Rel.41567` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: v1.
  - affected: `before 1.2.6 Build 20260723 Rel.41321` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER706W-4G v2.
  - affected: `before 2.1.11 Build 20260723 Rel.41624` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER706WP-4G v1.
  - affected: `before 1.1.11 Build 20260723 Rel.41624` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER703WP-4G-Outdoor v1.
  - affected: `before 1.1.7 Build 20260723 Rel.41712` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: DR3220v-4G v1.
  - affected: `before 1.2.0 Build 20260630 Rel.82652` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: DR3650v v1.
  - affected: `before 1.2.0 Build 20260630 Rel.83311` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: DR3650v-4G v1.
  - affected: `before 1.2.0 Build 20260630 Rel.83347` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER603WP-4G-Outdoor v1.
  - affected: `before 1.0.2 Build 20260723 Rel.43271` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: DR3150 v1.
  - affected: `before 1.0.1 Build 20260722 Rel.16854` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER701-5G-Outdoor v1.
  - affected: `before 1.0.3 Build 20260723 Rel.40931` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: ER605W v2.
  - affected: `before 2.0.4 Build 20260723 Rel.43763` (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

- 6.3 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`, from CNA (TPLink)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0034, the 28th percentile, on 9 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 20 Aug 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-19683](https://www.cve.org/CVERecord?id=CVE-2026-19683)
- [NVD: CVE-2026-19683](https://nvd.nist.gov/vuln/detail/CVE-2026-19683)

### References from the CNA

- <https://www.omadanetworks.com/en/support/download/> (patch)
- <https://www.omadanetworks.com/us/support/download/> (patch)
- <https://www.tp-link.com/us/support/faq/5256/> (vendor-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-2026-19683>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-19683/>. Everything for agents: <https://agentprime.io/llms.txt>.