How severe is CVE-2026-19683?

CVE-2026-19683 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-19683 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-19683?

CVE-2026-19683 primarily affects Tp-link Er7212pc Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-19683?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-19683 published?

CVE-2026-19683 was published on 2026-08-20 and last updated on 2026-09-08.

CVE-2026-19683

CVE-2026-19683 is a high-severity vulnerability in Tp-link Er7212pc Firmware with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v4: 6.3
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Tp-link Er7212pc Firmware
Published: 2026-08-20
Last modified: 2026-09-08

Description

A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can observe or manipulate traffic between an affected device and the DDNS service may obtain sensitive authentication information or interfere with DDNS update operations. Exploitation requires DDNS to be configured, communication with an external DDNS service, and attacker visibility or control of the relevant network path. Successful exploitation may result in disclosure of DDNS account credentials, unauthorized access to DDNS management functionality, or modification of DNS records associated with the affected deployment.

Frequently asked questions

What is CVE-2026-19683?: A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can observe or manipulate traffic between an affected device and the DDNS service may obtain sensitive authentication information or interfere with DDNS update operations. Exploitation requires DDNS to be configured, communication with an external DDNS service, and attacker visibility or control of the relevant network path. Successful exploitation may result in disclosure of DDNS account credentials, unauthorized access to DDNS management functionality, or modification of DNS records associated with the affected deployment.
How severe is CVE-2026-19683?: CVE-2026-19683 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-19683 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-19683?: CVE-2026-19683 primarily affects Tp-link Er7212pc Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-19683?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-19683 published?: CVE-2026-19683 was published on 2026-08-20 and last updated on 2026-09-08.

References

Affected products (18)

cpe:2.3:o:tp-link:er7212pc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er605_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er7206_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er7406_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er707-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er7412-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er8411_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er706w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er706w-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er706wp-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er703wp-4g-outdoor_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:dr3220v-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:dr3650v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:dr3650v-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er603wp-4g-outdoor_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:dr3150_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er701-5g-outdoor_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:er605w_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Er7212pc Firmware

CVE-2026-19586 — Critical (CVSS 9.8): A pre-authentication OS command injection vulnerability has been identified in Omada gateways configured to operate as…
CVE-2025-7851 — Critical (CVSS 9.8): An attacker may obtain the root shell on the underlying OS system with the restricted conditions on Omada gateways.
CVE-2025-6542 — Critical (CVSS 9.8): An arbitrary OS command may be executed on the product by a remote unauthenticated attacker.
CVE-2025-6541 — High (CVSS 8.8): An arbitrary OS command may be executed on the product by the user who can log in to the web management interface.
CVE-2025-7850 — High (CVSS 7.2): A command injection vulnerability may be exploited after the admin's authentication on the web portal on Omada gateways.
CVE-2025-9290 — Medium (CVSS 5.9): An authentication weakness was identified in Omada Controllers, Gateways and Access Points, controller-device adoption…

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