CVE-2017-11344: Global buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT
49
This month
HIGH 7.8UPGRADEUPGRADEUPGRADE
CVE-2017-11344 is a high-severity flaw (CVSS 7.8) affecting rt-ac5300 firmware, rt ac1900p firmware, rt-ac68u firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Global buffer overflow 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 write shellc
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
asuswrt-merlin project rt-ac68u firmware UPGRADE
Affected: <= 3.0.0.4.380.7743
Fixed in: newer than 3.0.0.4.380.7743
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
asuswrt-merlin project rt-ac68p firmware UPGRADE
Affected: <= 3.0.0.4.380.7743
Fixed in: newer than 3.0.0.4.380.7743
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
asuswrt-merlin project rt-ac88u firmware UPGRADE
Affected: <= 3.0.0.4.380.7743
Fixed in: newer than 3.0.0.4.380.7743
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
asuswrt-merlin project rt-ac66u firmware UPGRADE
Affected: <= 3.0.0.4.380.7743
Fixed in: newer than 3.0.0.4.380.7743
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · CVE Program · Report a problem with this page Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-11344?
rt-ac5300 firmware: upgrade to newer than 3.0.0.4.380.7743; rt ac1900p firmware: upgrade to newer than 3.0.0.4.380.7743; rt-ac68u firmware: upgrade to newer than 3.0.0.4.380.7743. Exact commands for each OS are on this page.
Is CVE-2017-11344 being exploited?
CVE-2017-11344 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-11344 affect?
CVE-2017-11344 affects rt-ac5300 firmware, rt ac1900p firmware, rt-ac68u firmware. Severity is high (CVSS 7.8). Global buffer overflow 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-N18
How urgent is CVE-2017-11344?
Priority 49/100. High severity
Related CVEs
CVE-2021-45756CRITICAL 9.8UPGRADEUPGRADE Asus RT-AC68U <3.0.0.4.385.20633 and RT-AC5300 <3.0.0.4.384.82072 are affected by a buffer overflow in blockin
CVE-2018-18320CRITICAL 9.8UPGRADEUPGRADE An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices
CVE-2018-18319CRITICAL 9.8UPGRADEUPGRADE An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices
CVE-2017-11420CRITICAL 9.8UPGRADEUPGRADE Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and
CVE-2017-11345HIGH 7.8UPGRADEUPGRADE Stack buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-
PatchTheCVE