Security readout for executives and security teams
Plain-English summary
This issue can let a low-privileged network attacker crash an affected Tenda W18E device by abusing Wi-Fi configuration handling. The main business impact is loss of router availability, not confirmed data theft or takeover. Public evidence does not show active exploitation or a vendor-confirmed fix.
Executive priority
Treat as a moderate availability risk. Prioritize internet-exposed or shared-network deployments first, especially where router downtime would interrupt operations. Do not treat this as confirmed ransomware, data theft, or active exploitation based on the provided evidence.
Technical view
CVE-2025-29217 is a CWE-121 stack overflow in the wifiSSID parameter of /goform/setModules on Tenda W18E v2.0 firmware v16.01.0.11. CVSS 3.1 is 6.5: network-accessible, low complexity, low privileges required, no user interaction, high availability impact only.
Likely exposure
Exposure is most relevant where Tenda W18E administration surfaces are reachable by untrusted network users. The CVE record names a specific model and firmware, but structured affected-product data is incomplete.
Exploitation context
The source describes denial of service through a crafted POST request. KEV is false in the bundle, and no provided source establishes active exploitation, public weaponization, or compromise beyond device crash impact.
Researcher notes
Evidence is thin: the CVE text and researcher reference identify a stack overflow and DoS condition, but the bundle lacks a vendor advisory, patch statement, affected CPEs, or exploitation confirmation. Validate exposure defensively without reproducing crash behavior on production devices.
Mitigation direction
- Check Tenda guidance for firmware updates or official mitigations.
- Restrict router administration access to trusted management networks.
- Remove administrative interfaces from internet-facing exposure.
- Require strong authentication for any reachable management interface.
- Monitor for unexpected device reboots or configuration-service crashes.
Validation and detection
- Inventory Tenda W18E devices and record firmware versions.
- Identify any devices running v16.01.0.11.
- Confirm management interfaces are not exposed to untrusted networks.
- Review logs for repeated crashes or failed configuration requests.
- Track the CVE and vendor site for updated remediation guidance.
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-121: 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-2025-29217 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H2.83.6CISA-ADPVulnerability scoring details
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
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.tenda.com.cn/CVE reference, mitre
- https://gist.github.com/isstabber/d170f68bd85ed97e66ff316e57634b99CVE reference, mitre
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.