CVE-2025-60675: A command injection vulnerability exists in the D-Link DIR-823G router firmware DIR823G_V1.0.2B05_20181207....
A command injection vulnerability exists in the D-Link DIR-823G router firmware DIR823G_V1.0.2B05_20181207.bin in the timelycheck and sysconf binaries, which process the /tmp/new_qos.rule configuration file. The vulnerability occurs because parsed fields from the configuration file are concatenated into command strings and executed via system() without any sanitization. An attacker with write access to /tmp/new_qos.rule can execute arbitrary commands on the device.
Security readout for executives and security teams
Plain-English summary
CVE-2025-60675 is a command injection issue described in D-Link DIR-823G router firmware. If an attacker can write to a specific QoS configuration file, the device may run attacker-controlled commands. This is not described as unauthenticated takeover, but it can turn existing access into command execution on the router.
Executive priority
Treat this as a moderate operational risk for any remaining DIR-823G routers. Prioritize inventory and vendor-status checks, especially for devices exposed to users beyond a tightly controlled admin group.
Technical view
The reported flaw is in DIR823G_V1.0.2B05_20181207.bin, where timelycheck and sysconf parse /tmp/new_qos.rule and concatenate parsed fields into system() command strings without sanitization. CVSS 3.1 is 5.4, with network attack vector, low complexity, low privileges required, and low confidentiality and integrity impact.
Likely exposure
Exposure likely applies to D-Link DIR-823G devices running the named firmware, but structured affected-product metadata is incomplete. Risk is higher where untrusted users or compromised services can alter router QoS configuration data.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The attacker condition is specific: write access to /tmp/new_qos.rule is required before command execution becomes possible.
Researcher notes
Evidence supports command injection through unsanitized system() usage after parsing a writable configuration file. The main uncertainty is official vendor impact and remediation detail, because the structured CVE affected fields are n/a and no patch is named in the bundle.
Mitigation direction
Check D-Link security guidance for firmware updates or product status.
Inventory DIR-823G routers and confirm firmware versions.
Restrict router administration to trusted networks and accounts.
Segment affected routers from sensitive systems where feasible.
Retire or replace unsupported devices if no vendor fix exists.
Validation and detection
Confirm whether any deployed devices are D-Link DIR-823G.
Compare installed firmware against DIR823G_V1.0.2B05_20181207.
Review who can modify QoS or related router configuration.
Check for unexpected QoS rule changes on affected devices.
Monitor D-Link and CVE records for updated remediation guidance.
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
4Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-77 · source CWE mapping
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.