Security readout for executives and security teams
Plain-English summary
CVE-2026-10190 can let a logged-in attacker remotely crash or disrupt the web management service on a Tenda W12 device. The known affected version is 3.0.0.7(4763). Business impact is availability loss for device administration and potentially network operations, not data theft based on the cited scoring.
Executive priority
Treat as a high-priority network device availability issue if Tenda W12 is deployed. Prioritize exposure reduction immediately; patch timing is unclear from the provided sources.
Technical view
The issue is in Tenda W12 firmware 3.0.0.7(4763), in /bin/httpd's Web Management Interface function cgiSysWebTimeoutSet. Manipulating the web_over_time argument can trigger denial of service. CVSS 4.0 is 7.1 high: network reachable, low complexity, low privileges required, no user interaction, high availability impact.
Likely exposure
Exposure is limited to Tenda W12 devices running firmware 3.0.0.7(4763), especially where the web management interface is reachable by untrusted users or shared admin accounts.
Exploitation context
The bundle says exploit material is public and could be used, but KEV is false and no cited source confirms active exploitation. CVSS indicates an attacker needs low privileges.
Researcher notes
Evidence identifies a single affected firmware version and function. CWE-404 suggests improper resource handling. No vendor fix, workaround, or active exploitation confirmation is included in the bundle, so remediation should stay tied to vendor guidance.
Mitigation direction
- Inventory Tenda W12 devices and identify firmware version 3.0.0.7(4763).
- Restrict Web Management Interface access to trusted administration networks only.
- Review Tenda guidance for firmware updates or official workarounds.
- Disable remote management exposure where operationally feasible.
- Monitor device availability and management-service restarts until remediated.
Validation and detection
- Confirm whether any Tenda W12 runs firmware 3.0.0.7(4763).
- Verify the Web Management Interface is not internet-exposed.
- Review access logs for requests involving cgiSysWebTimeoutSet or web_over_time.
- Check whether administrative access requires unique, least-privilege accounts.
- Track VulDB and Tenda 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-404: 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 lookupCVE-2026-10190 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
- High
- CVSS
- 7.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
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
4 official scoresWe 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:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P——VulDBAV:N/AC:L/Au:S/C:N/I:N/A:C/E:POC/RL:ND/RC:UR86.9VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R2.83.6VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R2.83.6VulDBVulnerability scoring details
Base CVSS 4.0 score
7.1HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R
Base CVSS 2.0 score
6.8MediumVector: AV:N/AC:L/Au:S/C:N/I:N/A:C/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineVulDB
VulDB entry last update
- 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
- VDB-367471 | Tenda W12 Web Management httpd cgiSysWebTimeoutSet denial of serviceCVE reference, VulDB · vdb-entry, technical-description
- VDB-367471 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference, VulDB · signature, permissions-required
- CVE-2026-10190 | CVE Analysis and ReportCVE reference, VulDB · third-party-advisory
- Submit #820022 | Tenda W12 V3.0.0.7(4763) Denial of ServiceCVE reference, VulDB · third-party-advisory
- https://www.tenda.com.cn/CVE reference, VulDB · product
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.
Improper Resource Shutdown or Release
Improper Resource Shutdown or Release represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.