Security readout for executives and security teams
CVE-2021-21735 is an information leak in ZTE ZXHN H168N devices. The provided record says improper permissions can expose sensitive user information through a wizard page. Business risk depends on whether affected device management pages are reachable by untrusted users. Exposure is likely limited to organizations, ISPs, or customers operating ZXHN H168N devices on affected firmware where the wizard or management interface is reachable by untrusted users. Treat this as a targeted exposure-reduction issue, not a confirmed emergency. Prioritize devices with reachable administration pages, customer data sensitivity, or no available firmware update path. Mitigation focus: Check ZTE guidance for fixed firmware or recommended configuration changes.; Restrict wizard and management interfaces to trusted administration networks.; Remove internet or guest-network reachability to affected device administration pages..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2021-21735 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1015924CVE reference, zte · x_refsource_MISC
Products and packages named in the record
CWE details
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