CVE-2026-34473
Received Received - Intake
Unauthenticated DoS in ZTE Router Firmware

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: MITRE

Description
Unauthenticated DoS in ZTE H8102E, H168N, H167A, H199A, H288A, H198A, H267A, H267N, H268A, H388X, H196A, H369A, H268N, H208N, H367N, H181A, and H196Q. A denial-of-service condition can be triggered against the router's web interface by sending an oversized application/x-www-form-urlencoded POST body. After triggering, the management interface may become unresponsive until the device is rebooted. This may affect any firmware version prior to 2022 (reporter observation). The supplier stated that devices are not vulnerable since 2021-03-23; operator firmware may vary.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-05-07
AI Q&A
2026-05-06
EPSS Evaluated
N/A
NVD
EUVD
Affected Vendors & Products
Showing 17 associated CPEs
Vendor Product Version / Range
zte h8102e *
zte h168n *
zte h167a *
zte h199a *
zte h288a *
zte h198a *
zte h267a *
zte h267n *
zte h268a *
zte h388x *
zte h196a *
zte h369a *
zte h268n *
zte h208n *
zte h367n *
zte h181a *
zte h196q to 2022 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is an unauthenticated denial-of-service (DoS) issue affecting multiple ZTE router models. It occurs when an attacker sends an oversized application/x-www-form-urlencoded POST request to the router's web management interface. This causes the interface to become unresponsive until the device is rebooted.


How can this vulnerability impact me? :

The impact of this vulnerability is that an attacker can cause the router's management interface to become unresponsive without needing to authenticate. This denial-of-service condition can disrupt management and control of the device, potentially leading to downtime or loss of administrative access until the router is rebooted.


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