GCVE-1988-2026-0371

Vulnerability from gna-1988 – Published: 2026-09-11 07:55 – Updated: 2026-09-11 07:55
VLAI
Title
[SECURITY ADVISORY] CVE-2026-34472 - ZTE ZXHN H188A V6 Authentication Bypass via Pre-Login Wizard
Summary
-----BEGIN SECURITY ADVISORY----- Advisory ID: MONX-2026-002 CVE ID: CVE-2026-34472 Title: ZTE ZXHN H188A V6 - Authentication Bypass via Pre-Login Wizard Credential Leakage Affected: ZTE ZXHN H188A V6.0.10P2_TE, V6.0.10P3N3_TE Date: 2026-05-20 Author: Mina Nageh Salalma (Monx Research) Contact: minanageh379 () gmail com Public URL: https://github.com/minanagehsalalma/cve-2026-34472-auth-bypass-zte-h188a-router MITRE: https://www.cve.org/CVERecord?id=CVE-2026-34472 VULNERABILITY DESCRIPTION -------------------------- Unauthenticated requests to the root path of ZTE ZXHN H188A V6 firmware can reach pre-login wizard handlers and disclose WLAN PSKs, SSIDs, and PPPoE usernames. The leaked Wi-Fi password is also the default administrator password after uppercasing, resulting in full authentication bypass. ROOT CAUSE ---------- router_logic_impl.lua accepts attacker-controlled _type and _tag parameters for empty-path requests. urlpath_2type_modifier.lua only activates the QuickSetupEnable gate when _type is absent. Supplying _type explicitly causes the wizard handlers (getPassword, wlan_get, ppp_get) to execute for unauthenticated requests, returning WLAN PSKs, SSIDs, and PPPoE credentials. TIMELINE -------- 2024-04-26: Local validation and PoC artifacts created. 2024-05: Report sent to ZTE PSIRT. 2024-05-10: ZTE PSIRT stopped responding. 2026-01-17: Escalated to MITRE. 2026-02-02: ZTE PSIRT explicitly declined CVE assignment. 2026-03-27: MITRE assigned CVE-2026-34472. 2026-05-20: Full public disclosure. CREDITS ------- Mina Nageh Salalma (Monx Research) https://github.com/minanagehsalalma -----END SECURITY ADVISORY----- _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
Impacted products
Vendor Product Version CPE status
unknown unknown Affected: unknown
guessed Create a notification for this product.
Credits
Relationships
analysis GCVE-1988-2026-0371 (this record)

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          "value": "-----BEGIN SECURITY ADVISORY-----\n\nAdvisory ID:    MONX-2026-002\nCVE ID:         CVE-2026-34472\nTitle:          ZTE ZXHN H188A V6 - Authentication Bypass via Pre-Login\nWizard Credential Leakage\nAffected:       ZTE ZXHN H188A V6.0.10P2_TE, V6.0.10P3N3_TE\nDate:           2026-05-20\nAuthor:         Mina Nageh Salalma (Monx Research)\nContact:        minanageh379 () gmail com\nPublic URL:\nhttps://github.com/minanagehsalalma/cve-2026-34472-auth-bypass-zte-h188a-router\nMITRE:          https://www.cve.org/CVERecord?id=CVE-2026-34472\n\n\nVULNERABILITY DESCRIPTION\n--------------------------\nUnauthenticated requests to the root path of ZTE ZXHN H188A V6 firmware can\nreach pre-login wizard handlers and disclose WLAN PSKs, SSIDs, and PPPoE\nusernames. The leaked Wi-Fi password is also the default administrator\npassword after uppercasing, resulting in full authentication bypass.\n\n\nROOT CAUSE\n----------\nrouter_logic_impl.lua accepts attacker-controlled _type and _tag parameters\nfor empty-path requests. urlpath_2type_modifier.lua only activates the\nQuickSetupEnable gate when _type is absent. Supplying _type explicitly\ncauses\nthe wizard handlers (getPassword, wlan_get, ppp_get) to execute for\nunauthenticated requests, returning WLAN PSKs, SSIDs, and PPPoE credentials.\n\n\nTIMELINE\n--------\n2024-04-26: Local validation and PoC artifacts created.\n2024-05:    Report sent to ZTE PSIRT.\n2024-05-10: ZTE PSIRT stopped responding.\n2026-01-17: Escalated to MITRE.\n2026-02-02: ZTE PSIRT explicitly declined CVE assignment.\n2026-03-27: MITRE assigned CVE-2026-34472.\n2026-05-20: Full public disclosure.\n\n\nCREDITS\n-------\nMina Nageh Salalma (Monx Research)\nhttps://github.com/minanagehsalalma\n\n-----END SECURITY ADVISORY-----\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
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