CVE-2017-11420
9.8
CRITICAL · CVSS 3.0 · EPSS 5.6% (pctl 93)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 5.61% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-07-18 |
| Last modified | 2026-06-17 |
Affected (40)
| Vendor | Product |
|---|---|
| asuswrt-merlin project | rt ac1200g |
| asuswrt-merlin project | rt ac1200g firmware |
| asuswrt-merlin project | rt ac1200gu |
| asuswrt-merlin project | rt ac1200gu firmware |
| asuswrt-merlin project | rt ac1900p |
| asuswrt-merlin project | rt ac1900p firmware |
| asuswrt-merlin project | rt-ac1200 |
| asuswrt-merlin project | rt-ac1200 firmware |
| asuswrt-merlin project | rt-ac3100 |
| asuswrt-merlin project | rt-ac3100 firmware |
| asuswrt-merlin project | rt-ac3200 |
| asuswrt-merlin project | rt-ac3200 firmware |
| asuswrt-merlin project | rt-ac51u |
| asuswrt-merlin project | rt-ac51u firmware |
| asuswrt-merlin project | rt-ac52u |
| asuswrt-merlin project | rt-ac52u firmware |
| asuswrt-merlin project | rt-ac5300 |
| asuswrt-merlin project | rt-ac5300 firmware |
| asuswrt-merlin project | rt-ac55u |
| asuswrt-merlin project | rt-ac55u firmware |
| asuswrt-merlin project | rt-ac56u |
| asuswrt-merlin project | rt-ac56u firmware |
| asuswrt-merlin project | rt-ac58u |
| asuswrt-merlin project | rt-ac58u firmware |
| asuswrt-merlin project | rt-ac66u |
| asuswrt-merlin project | rt-ac66u b1 |
| asuswrt-merlin project | rt-ac66u b1 firmware |
| asuswrt-merlin project | rt-ac66u firmware |
| asuswrt-merlin project | rt-ac68p |
| asuswrt-merlin project | rt-ac68p firmware |
| asuswrt-merlin project | rt-ac68u |
| asuswrt-merlin project | rt-ac68u firmware |
| asuswrt-merlin project | rt-ac88u |
| asuswrt-merlin project | rt-ac88u firmware |
| asuswrt-merlin project | rt-n18u |
| asuswrt-merlin project | rt-n18u firmware |
| asuswrt-merlin project | rt-n56u |
| asuswrt-merlin project | rt-n56u firmware |
| asuswrt-merlin project | rt-n66u |
| asuswrt-merlin project | rt-n66u firmware |
References
→ the Explorer · watch your stack · NVD