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CVE-2023-31188

HIGH
8
CVSS Score
Published: September 6, 2023 at 09:28 AM UTC
Updated: June 17, 2026 at 05:56 AM UTC
7 products affected across 1 vendorArcher C50 V3 FirmwareArcher C55 FirmwareArcher C50

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Severity
HIGH8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Archer C50 V3 Firmware· TP-Link
95%
v < 230505
Affected range stops below 230505, so it looks safe — our inference, not a vendor statement
Archer C55 Firmware· TP-Link
95%
v < 230506
Affected range stops below 230506, so it looks safe — our inference, not a vendor statement
Archer C50· TP-Link
90%
v < 230505firmware versions prior to 'Archer C50(JP)_V3_230505'
Affected range stops below 230505, so it looks safe — our inference, not a vendor statement
tp-link-archer-c50-v3 (same device)
Archer C55· TP-Link
90%
v < 230506firmware versions prior to 'Archer C55(JP)_V1_230506'
Affected range stops below 230506, so it looks safe — our inference, not a vendor statement
Archer C20· TP-Link
60%
v < 230616firmware versions prior to 'Archer C20(JP)_V1_230616'
Affected range stops below 230616, so it looks safe — our inference, not a vendor statement
Archer C20 Firmware· TP-Link
60%
v < 230616
Affected range stops below 230616, so it looks safe — our inference, not a vendor statement
Archer C50 V3· TP-Linkdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Third Party Advisory
Source: [email protected]
https://jvn.jp/en/vu/JVNVU99392903/
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/archer-c20/v1/#Firmware
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/archer-c50/v3/#Firmware
Product
Source: [email protected]
https://www.tp-link.com/jp/support/download/archer-c55/#Firmware

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHCISA-ADP
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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