Security readout for executives and security teams
Plain-English summary
CVE-2025-51082 is a reported stack overflow in Tenda AC8V4 firmware V16.03.34.06. A network request to the Wi-Fi fast-setting endpoint can trigger a buffer overflow through the timeZone argument, potentially causing limited availability impact. The sources do not identify a vendor patch or confirm real-world exploitation.
Executive priority
Moderate priority. This is not currently supported as actively exploited, but affected perimeter or branch routers can create operational risk if management access is exposed. Prioritize inventory, access restriction, and vendor patch tracking.
Technical view
The CVE describes CWE-121 stack-based buffer overflow at /goform/fast_setting_wifi_set caused by handling of the timeZone parameter. CVSS 3.1 is 5.3: network reachable, low complexity, no privileges, no user interaction, unchanged scope, and low availability impact only. Affected CPE metadata is incomplete in the source bundle.
Likely exposure
Likely exposure is limited to Tenda AC8V4 devices running firmware V16.03.34.06, especially where the device management interface is reachable from untrusted networks. The CVE metadata lists affected vendor and product as n/a, so inventory confirmation is required.
Exploitation context
The provided sources support a network-accessible vulnerability description, but do not show KEV listing, active exploitation, public weaponization status, or confirmed attacks. Treat exploitability as plausible from the CVSS vector, not as evidence of exploitation in the wild.
Researcher notes
The vulnerability details come mainly from the CVE record and linked public researcher write-up. The affected-product metadata is sparse, and no patch information is included. Avoid assuming broader Tenda model impact without additional vendor or CVE evidence.
Mitigation direction
- Check Tenda guidance for fixed firmware or official mitigation.
- Do not expose router management interfaces to the internet.
- Restrict administration access to trusted management networks.
- Upgrade affected firmware if a vendor-approved update is available.
- Monitor for unusual requests to /goform/fast_setting_wifi_set.
Validation and detection
- Inventory Tenda AC8V4 devices and record firmware versions.
- Identify whether V16.03.34.06 is present in production.
- Confirm management interfaces are not internet reachable.
- Review logs for requests to the affected endpoint.
- Track CVE and vendor references for patch status.
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-2025-51082 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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:N/UI:N/S:U/C:N/I:N/A:L3.91.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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://github.com/TL-SN/IOT/blob/main/Tenda/Tenda-AC8v4%20%20V16.03.34.06/CVE-2025-51082.mdCVE 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.