CVE intelligence and bounded remediation
CVE-2023-31188 — Multiple TP-LINK products allow a network-adjacent authenticated attacker to execute arbitrary OS commands
High
CVSS 8
Multiple TP-LINK products allow a network-adjacent authenticated attacker to execute arbitrary OS commands. Affected products/versions are as follows: Archer C50 firmware versions prior to 'Archer C50(JP)_V3_230505', Archer C55 firmware versions prior to 'Archer C55(JP)_V1_230506', and Archer C20 firmware versions prior to 'Archer C20(JP)_V1_230616'.
- Severity
- High
- CVSS
- 8 (3.1)
- Published
- 2023-09-06
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-78
Affected products
- tp-link / archer_c55_firmware
- tp-link / archer_c50_v3_firmware
Matched remediation archetype
Command, code, expression, and template injection
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
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
The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.