Security readout for executives and security teams
Plain-English summary
This CVE describes a memory corruption flaw in Tenda AC8V4 firmware V16.03.34.06. A network-accessible request can trigger a heap overflow through the parent-control information function. Reported impact is limited integrity and availability, so the main business concern is device instability or unauthorized change risk, not confirmed data theft.
Executive priority
Treat as a scheduled remediation item for network edge and small-office router fleets. Prioritize faster if affected devices are internet-exposed, unmanaged, or used in sensitive sites. Current evidence does not justify emergency response based on exploitation alone.
Technical view
The source reports CWE-122 heap-based buffer overflow in /goform/GetParentControlInfo when handling the mac argument. CVSS 3.1 is 6.5: network attack vector, low complexity, no privileges, no user interaction, unchanged scope, no confidentiality impact, low integrity and availability impact.
Likely exposure
Exposure is likely limited to environments running Tenda AC8V4 firmware V16.03.34.06, especially if router administrative interfaces are reachable from untrusted networks. The structured CVE affected-product fields are incomplete, so confirm against asset inventory and vendor documentation.
Exploitation context
The bundle does not show CISA KEV listing or any cited evidence of active exploitation. A public GitHub reference exists, but the provided sources do not establish exploitation in the wild, weaponized tooling, or a vendor-fixed version.
Researcher notes
Key evidence is narrow: one CVE record and one public research reference. The CVE names the endpoint and vulnerable argument, but structured affected-product data and patch status are incomplete. Avoid assuming broader Tenda impact without vendor confirmation.
Mitigation direction
- Check Tenda guidance for fixed firmware or official mitigation.
- Upgrade affected firmware if a vendor fix is available.
- Restrict router administration to trusted internal networks only.
- Disable remote administration from the internet where possible.
- Monitor affected devices for unexpected reboots or configuration changes.
Validation and detection
- Inventory Tenda AC8V4 devices and record firmware versions.
- Confirm whether V16.03.34.06 is present in the environment.
- Verify administrative interfaces are not exposed to untrusted networks.
- Review logs for unusual access to parent-control functions.
- Track the CVE and vendor pages 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-122: 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-2025-51089 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:N/UI:N/S:U/C:N/I:L/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:L/A:L3.92.5CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-2025-51089.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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.