What’s Vulnerable › Vulnerabilities

CVE-2023-36489

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% 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 unauthenticated attacker to execute arbitrary OS commands. Affected products/versions are as follows: TL-WR802N firmware versions prior to 'TL-WR802N(JP)_V4_221008', TL-WR841N firmware versions prior to 'TL-WR841N(JP)_V14_230506', and TL-WR902AC firmware versions prior to 'TL-WR902AC(JP)_V3_230506'.

Affected products

• TP-LINK TL-WR802N V4(JP): before 221008 — fixed in 221008
• TP-Link TL-WR841N: before 230506 — fixed in 230506
• TP-Link TL-WR902AC: before 230506 — fixed in 230506

How to fix

Upgrade to a fixed version: TP-LINK TL-WR802N V4(JP) 221008; TP-Link TL-WR841N 230506; TP-Link TL-WR902AC 230506. Check the vendor advisory for mitigations.

References

• https://jvn.jp/en/vu/JVNVU99392903/
• https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware
• https://www.tp-link.com/jp/support/download/tl-wr841n/v14/#Firmware
• https://www.tp-link.com/jp/support/download/tl-wr902ac/#Firmware
• https://jvn.jp/en/vu/JVNVU99392903/
• https://www.tp-link.com/jp/support/download/tl-wr802n/#Firmware
• https://www.tp-link.com/jp/support/download/tl-wr841n/v14/#Firmware
• https://www.tp-link.com/jp/support/download/tl-wr902ac/#Firmware

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