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CVE-2017-11420

Published: Jul 18, 2017Updated: May 13, 2026 Sources: CVE List NVD BDUCWE-119
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
5.6%
Top 8.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

rt-ac5300 firmwareasuswrt-merlin project
Embedded
Networking Infrastructure / router-switch
rt ac1900p firmwareasuswrt-merlin project
Embedded
Networking Infrastructure / router-switch
rt-ac68u firmwareasuswrt-merlin project
Embedded
Networking Infrastructure / router-switch
rt-ac68p firmwareasuswrt-merlin project
Embedded
Networking Infrastructure / router-switch
rt-ac88u firmwareasuswrt-merlin project
Embedded
Networking Infrastructure / router-switch
asuswrt-merlin projectoss-projectTWNetworking Infrastructureaka merlin firmware, asuswrt-merlin
and 25 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://www.openwall.com/lists/oss-security/2017/07/13/1
openwall.com
https://asuswrt.lostrealm.ca/changelog
asuswrt.lostrealm.ca

Timeline

Published
Jul 18, 2017
Last Updated
May 13, 2026

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