CVE-2026-34473
HIGHZTE Multiple Models - Unauthenticated DoS via Oversized POST Body
Title source: llmExploitation Summary
EIP tracks 2 public exploits for CVE-2026-34473. PoCs published by Mina Nageh Salalma, minanagehsalalma.
AI-analyzed exploit summary The exploit demonstrates an unauthenticated DoS vulnerability in ZTE routers by sending an oversized POST request to the CGILua parser, causing the web service to crash or freeze. The PoC is functional and targets multiple ZTE router models.
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.
Exploits (2)
The exploit demonstrates an unauthenticated DoS vulnerability in ZTE routers by sending an oversized POST request to the CGILua parser, causing the web service to crash or freeze. The PoC is functional and targets multiple ZTE router models.
This repository provides a detailed technical analysis of CVE-2026-34473, an unauthenticated denial-of-service vulnerability affecting ZTE routers. It includes root cause analysis, firmware analysis artifacts, and validation notes, but does not contain functional exploit code.
References (3)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H