CVE-2017-11420

CRITICAL

Asuswrt-Merlin Firmware < 3.0.0.4.380.7743 - Remote Code Execution via Long Device Information

Title source: llm
STIX 2.1

Description

Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code via long device information that is mishandled during a strcat to a device list.

References (2)

Core 2
Core References
Various Sources x_refsource_confirm
https://asuswrt.lostrealm.ca/changelog
Exploit, Mailing List, Third Party Advisory x_refsource_misc
http://www.openwall.com/lists/oss-security/2017/07/13/1

Scores

CVSS v3 9.8
EPSS 0.0561
EPSS Percentile 92.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (28)
asuswrt-merlin_project/rt-ac1200_firmware < 3.0.0.4.380.9880
asuswrt-merlin_project/rt-ac3100_firmware < 3.0.0.4.380.7743
asuswrt-merlin_project/rt-ac3200_firmware < 3.0.0.4.380.7743
asuswrt-merlin_project/rt-ac51u_firmware < 3.0.0.4.380.7378
asuswrt-merlin_project/rt-ac52u_firmware < 3.0.0.4.380.4180
asuswrt-merlin_project/rt-ac5300_firmware < 3.0.0.4.380.7743
asuswrt-merlin_project/rt-ac53_firmware < 3.0.0.4.380.9883
asuswrt-merlin_project/rt-ac55u_firmware < 3.0.0.4.380.7378
asuswrt-merlin_project/rt-ac56u_firmware < 3.0.0.4.380.7743
asuswrt-merlin_project/rt-ac58u_firmware < 3.0.0.4.380.7485
... and 18 more
Published Jul 18, 2017
Tracked Since Feb 18, 2026