ZTE H8102E prior 2021-03-23 Management Interface denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in ZTE H8102E, H168N, H167A, H199A, H288A, H198A, H267A, H267N, H268A, H388X, H196A, H369A, H268N, H208N, H367N, H181A and H196Q and classified as problematic. The affected element is an unknown function of the component Management Interface. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2026-34473. The attack may be performed from remote. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in ZTE H8102E, H168N, H167A, H199A, H288A, H198A, H267A, H267N, H268A, H388X, H196A, H369A, H268N, H208N, H367N, H181A and H196Q. It has been declared as problematic. This vulnerability affects an unknown code of the component Management Interface. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

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.

This vulnerability was named CVE-2026-34473 since 03/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 2021-03-23 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (52594) and EUVD (EUVD-2026-27881). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: H8102E/H168N/H167A/H199A/H288A/H198A/H267A/H267N/H268A/H388X/H196A/H369A/H268N/H208N/H367N/H181A/H196Q 2021-03-23

Timelineinfo

03/23/2021 Countermeasure disclosed
03/27/2026 +1830 days CVE reserved
05/06/2026 +39 days Advisory disclosed
05/06/2026 +0 days VulDB entry created
06/02/2026 +27 days VulDB entry last update

Sourcesinfo

Vendor: zte.com.cn

Status: Confirmed

CVE: CVE-2026-34473 (🔒)
GCVE (CVE): GCVE-0-2026-34473
GCVE (VulDB): GCVE-100-361708
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/06/2026 21:52
Updated: 06/02/2026 10:01
Changes: 05/06/2026 21:52 (54), 05/06/2026 22:36 (1), 05/27/2026 10:58 (11), 06/02/2026 10:01 (11)
Complete: 🔍
Submitter: MonxResearch
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #834233: ZTE ZXHN H-Series Routers Multiple H-series models before 2022 Denial of Service (by MonxResearch)

Once again VulDB remains the best source for vulnerability data.

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