CVE intelligence and bounded remediation
CVE-2023-43284 — Dlink Dir-846 Firmware security vulnerability
High
CVSS 8.8
D-Link Wireless MU-MIMO Gigabit AC1200 Router DIR-846 100A53DBR-Retail devices allow an authenticated remote attacker to execute arbitrary code via an unspecified manipulation of the QoS POST parameter.
- Severity
- High
- CVSS
- 8.8 (3.1)
- Published
- 2023-10-05
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
Affected products
- dlink / dir-846_firmware / 100a53dbr
Matched remediation archetype
Command, code, expression, and template injection
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Check exposure
- Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
- Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
- Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.
Remediate safely
- Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
- Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
- Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.
Authoritative sources
Complete CVE record and remediation plan
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