What’s Vulnerable › Vulnerabilities

CVE-2023-31188

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-06 · updated 2026-06-17
• Weakness: CWE-78

Description

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'.

Affected products

• TP-Link Archer C50 V3 Firmware: before 230505 — fixed in 230505
• TP-Link Archer C55 Firmware: before 230506 — fixed in 230506

How to fix

Upgrade to a fixed version: TP-Link Archer C50 V3 Firmware 230505; TP-Link Archer C55 Firmware 230506. Check the vendor advisory for mitigations.

References

• https://jvn.jp/en/vu/JVNVU99392903/
• https://www.tp-link.com/jp/support/download/archer-c20/v1/#Firmware
• https://www.tp-link.com/jp/support/download/archer-c50/v3/#Firmware
• https://www.tp-link.com/jp/support/download/archer-c55/#Firmware
• https://jvn.jp/en/vu/JVNVU99392903/
• https://www.tp-link.com/jp/support/download/archer-c20/v1/#Firmware
• https://www.tp-link.com/jp/support/download/archer-c50/v3/#Firmware
• https://www.tp-link.com/jp/support/download/archer-c55/#Firmware

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