CVE-2023-31195

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-13 · updated 2026-06-17
Weakness: CWE-319

Description

ASUS Router RT-AX3000 Firmware versions prior to 3.0.0.4.388.23403 uses sensitive cookies without 'Secure' attribute. When an attacker is in a position to be able to mount a man-in-the-middle attack, and a user is tricked to log into the affected device through an unencrypted ('http') connection, the user's session may be hijacked.

Affected products

ASUSTeK COMPUTER INC. ASUS Router RT-AX3000: before 3.0.0.4.388.23403 — fixed in 3.0.0.4.388.23403

How to fix

Upgrade to a fixed version: ASUSTeK COMPUTER INC. ASUS Router RT-AX3000 3.0.0.4.388.23403. Check the vendor advisory for mitigations.

References

https://jvn.jp/en/jp/JVN34232595/
https://www.asus.com/networking-iot-servers/wifi-routers/asus-wifi-routers/rt-ax3000/helpdesk_bios/?model2Name=RT-AX3000
https://jvn.jp/en/jp/JVN34232595/
https://www.asus.com/networking-iot-servers/wifi-routers/asus-wifi-routers/rt-ax3000/helpdesk_bios/?model2Name=RT-AX3000

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