CVE-2018-19528

TP-Link TL-WR886N 7.0 1.1.0 devices allow remote attackers to cause a denial of service (Tlb Load Exception) via crafted DNS packets to port 53/udp

published November 26, 2018

CVSS
—
EPSS
3%
Percentile
85.7
In the wild
Unconfirmed
What it is

⚠️ A single crafted DNS packet is all it takes to send TP-Link TL-WR886N devices into a tailspin! This denial of service vulnerability could leave your network gasping for breath. 🔥 Think of it like a chef receiving a fake order that causes total kitchen chaos. One bad ticket can lead to every dish in the restaurant going unserved, just like the router can't handle the false data and stops working properly. In practical terms, this means an attacker can bombard your router with specially crafted DNS packets, causing it to crash and disrupt connectivity. The result? Your internet goes dark, leaving you and your devices stuck in limbo!

Put simply

Think of it like a chef receiving a fake order that causes total kitchen chaos. One bad ticket can lead to every dish in the restaurant going unserved, just like the router can't handle the false data and stops working properly. This vulnerability arises from the TP-Link TL-WR886N 7.0 devices' inability to handle certain malformed DNS queries sent to port 53/udp. When these crafted packets are received, they trigger a Tlb Load Exception, leading to a denial of service state.

What to do

In practical terms, this means an attacker can bombard your router with specially crafted DNS packets, causing it to crash and disrupt connectivity. The result? Your internet goes dark, leaving you and your devices stuck in limbo! To protect your network, ensure your router's firmware is updated to the latest version available from TP-Link. Regularly check for updates and consider implementing firewall rules to limit exposure to untrusted DNS traffic. You've got this! With these steps, you'll keep your network safe and secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02684 · 85.7th percentile
Published
2018-11-26T02:00Z
EPSS history
Timeline
  • 26 NOV 02:00Z
    TP-Link TL-WR886N 7.0 1.1.0 devices allow remote attackers to cause a denial of service (Tlb Load Exception) via crafted DNS packets to port 53/udp
    cvelistv5