Security readout for executives and security teams
Plain-English summary
CVE-2025-46060 is a critical buffer overflow reported in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506. A remote, unauthenticated attacker may be able to execute arbitrary code through the UPLOAD_FILENAME component. This could allow full device compromise if exposed. Public sources do not confirm active exploitation or a vendor patch.
Executive priority
Treat as urgent for any exposed or business-critical TOTOLINK N600R deployment. Prioritize inventory, isolation from the internet, and vendor remediation checks. If devices cannot be updated or isolated, plan replacement because the reported impact is full compromise.
Technical view
The CVE describes CWE-120 buffer overflow in the UPLOAD_FILENAME component of TOTOLINK N600R v4.3.0cu.7866_B2022506. CVSS 3.1 is 9.8: network attack vector, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact. Affected CPE metadata is incomplete in the record.
Likely exposure
Organizations using TOTOLINK N600R devices on the named firmware are the primary concern. Exposure is higher where device management or upload functionality is reachable from untrusted networks. The CVE record does not provide complete affected product metadata beyond the description.
Exploitation context
The issue is described as remotely exploitable and unauthenticated. No CISA KEV listing is present in the provided data, and the cited sources do not establish active exploitation. Public researcher material exists, so defenders should assume exploit development interest is plausible.
Researcher notes
Public CVE data is sparse: affected fields are marked n/a, while the description names TOTOLINK N600R v4.3.0cu.7866_B2022506. The GitHub reference appears to be the primary technical source. Avoid assuming broader model impact without vendor confirmation or additional evidence.
Mitigation direction
- Check TOTOLINK guidance for fixed firmware or official mitigation.
- Remove affected device management interfaces from internet exposure.
- Restrict access to trusted administrative networks only.
- Replace or retire devices if no supported fix is available.
- Monitor perimeter logs for suspicious access to upload functionality.
Validation and detection
- Inventory TOTOLINK N600R devices and firmware versions.
- Confirm whether v4.3.0cu.7866_B2022506 is deployed.
- Review firewall exposure for device administration interfaces.
- Check vendor advisories for firmware updates or mitigations.
- Document compensating controls where patch status is unresolved.
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-120: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-46060 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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://github.com/Luanruy/qaxCVE reference, mitre
- https://github.com/Luanruy/qax/blob/main/CVE-2025-46060_Info.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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.