CVE-2025-60683: A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 withi...
A command injection vulnerability exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary, specifically in the sub_40BFA4 function that handles network interface reinitialization from '/var/system/linux_vlan_reinit'. Input is only partially validated by checking the prefix of interface names, and is concatenated into shell commands executed via system() without escaping. An attacker with write access to this file can execute arbitrary commands on the device.
Security readout for executives and security teams
Plain-English summary
This issue lets commands be run on a ToToLink A720R router if an attacker can write to a specific router file. That could change device behavior or help maintain control of the router. The public record does not identify a vendor patch or active exploitation.
Executive priority
Treat this as a targeted router exposure issue, not an enterprise-wide emergency based on current evidence. Prioritize internet-exposed or remotely managed A720R devices, then decide whether vendor remediation or replacement is required.
Technical view
The reported flaw is CWE-77 command injection in ToToLink A720R firmware V4.1.5cu.614_B20230630. The sysconf binary partially validates interface-name prefixes from a VLAN reinitialization file, then concatenates input into system() calls without escaping. Structured affected-product metadata is incomplete.
Likely exposure
Exposure appears limited to ToToLink A720R devices running the named firmware, but the CVE affected-product fields are listed as n/a. Risk is higher where router administration or file-write paths are reachable from untrusted networks.
Exploitation context
The bundle says exploitation requires write access to the router file used for VLAN reinitialization. KEV is false, and no cited source claims active exploitation. Public proof details may exist in the researcher reference, but operational exploit guidance is not needed for defense.
Researcher notes
The key evidence gap is the mismatch between a specific description and n/a structured affected fields. Validate the firmware build and reachable write paths before scoring internal risk. Do not assume broader ToToLink product impact without vendor or CVE updates.
Mitigation direction
Check ToToLink guidance for a fixed firmware or official workaround.
Restrict router administration interfaces to trusted networks only.
Remove unneeded remote management exposure on affected routers.
Monitor affected devices for unexpected VLAN or interface changes.
Plan replacement if vendor-supported remediation is unavailable.
Validation and detection
Inventory ToToLink A720R routers in your environment.
Identify any devices running firmware V4.1.5cu.614_B20230630.
Review vendor and CVE records for updated affected-version data.
Check whether untrusted users can reach management or file-write paths.
Review logs and configuration state for unexpected interface changes.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · medium confidence lookup
CWE-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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.
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.
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.
1CVSS vectors
3Timeline events
1ADP providers
3Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total
CVSS vector scores
1 official score
We 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.