Zxhn H188a Firmware: Exposure of Sensitive Information to an Unauthorized Actor
CVE-2026-34472 is a high-severity exposure of sensitive information to an unauthorized actor vulnerability in Zxhn H188a Firmware from ZTE, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. Affected Zxhn H188a Firmware versions: 6.0.10p2_te; 6.0.10p3n3_te. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 8.95% chance of exploitation within 30 days, which is in the top 4.67% of all scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Zxhn H188a Firmware you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| ZTE | Zxhn H188a Firmware | 6.0.10p2_te; 6.0.10p3n3_te | Not stated |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N. Scored by CISA (ADP).
Official description
Unauthenticated credential disclosure in the wizard interface in ZTE ZXHN H188A V6.0.10P2_TE and V6.0.10P3N3_TE allows unauthenticated attackers on the local network to retrieve sensitive credentials from the router's web management interface, including the default administrator password, WLAN PSK, and PPPoE credentials. In some observed cases, configuration changes may also be performed without authentication.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
How developers prevent this class of flaw
- Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
More Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities (CWE-200)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- gist.github.com/minanagehsalalma/7a8516b9b00d0008f2f25750320560c9Third Party Advisory
Other references
Recent Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities
- 8.2 High severity
- 7.1 High severity
- 7.4 High severity
- 7.5 High severity
- 7.2 High severity
- 7.5 High severity
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