CVE-2023-31188 — Multiple TP-LINK products allow a network-adjacent authenticated attacker to exe

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 C5

01What is this vulnerability?

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'.

02Affected products

Vendor	Product	Versions
TP-LINK	Archer C50	firmware versions prior to 'Archer C50(JP)_V3_230505'
TP-LINK	Archer C55	firmware versions prior to 'Archer C55(JP)_V1_230506'
TP-LINK	Archer C20	firmware versions prior to 'Archer C20(JP)_V1_230616'

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-09-06T09:28:18.168Z
• Last modified: 2024-09-27T20:50:29.101Z

09References

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