Security readout for executives and security teams
Plain-English summary
Tenda W30E V2 devices may let browsers keep copies of sensitive admin pages because the firmware omits proper cache-control headers. This is not a remote takeover issue by itself, but it can expose admin information to someone who later accesses the same local browser profile or endpoint.
Executive priority
Treat as a medium-priority hygiene issue. It is unlikely to drive emergency response alone, but it matters where router administration occurs on shared or weakly controlled endpoints.
Technical view
CVE-2026-24437 is a CWE-525 issue in Shenzhen Tenda W30E V2 firmware up to and including V16.01.0.19(5037). Credential-bearing administrative responses lack appropriate cache-control directives. CVSS v4.0 is 4.8 with local attack, low complexity, low privileges, no user interaction, and low confidentiality impact.
Likely exposure
Exposure is most relevant where Tenda W30E V2 administration occurs from shared, unmanaged, or compromised endpoints. The source data does not indicate internet-scale exposure; the modeled attack is local and requires some prior access.
Exploitation context
The CVE is not listed as CISA KEV, and the provided sources do not state active exploitation or public weaponization. Risk comes from subsequent unauthorized local access to cached administrative content.
Researcher notes
Evidence is limited to the CVE record and advisory metadata. No patch, vendor mitigation, exploit details, or broader affected-version matrix is provided beyond W30E V2 firmware up to V16.01.0.19(5037).
Mitigation direction
- Check Tenda guidance and firmware downloads for an official remediation.
- Upgrade if Tenda publishes firmware addressing this CVE.
- Avoid administering devices from shared or untrusted endpoints.
- Use hardened admin workstations with browser cache clearing policies.
- Limit management access to authorized administrators and trusted networks.
Validation and detection
- Inventory Tenda W30E V2 devices and record firmware versions.
- Flag firmware up to and including V16.01.0.19(5037).
- In an authorized test, inspect admin responses for cache-control headers.
- Review whether admin pages persist in browser cache after logout.
- Track CVE, Tenda, and VulnCheck pages for remediation updates.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-525: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-24437 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
4.8MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
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://www.tendacn.com/product/W30ECVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/tenda-w30e-v2-missing-cache-controls-for-credential-bearing-pagesCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.