CVE-2023-46539

TP-LINK TL-WR886N V7.0_3.0.14_Build_221115_Rel.56908n.bin was discovered to contain a stack overflow via the function registerRequestHandle

High · published October 25, 2023

CVSS v3.1
8.8
EPSS
1%
Percentile
63.3
In the wild
Unconfirmed
What it is

⚡ A sneaky stack overflow has been found in the TP-LINK TL-WR886N router! 🛠️ This vulnerability lurks quietly in the registerRequestHandle function, waiting for its moment to shine! Think of it like a restaurant with a kitchen that has a limit on how many orders it can take. If the chef keeps accepting orders beyond that limit, chaos ensues — just like how this vulnerability can cause the router to crash if overwhelmed with requests. An attacker could exploit this stack overflow to crash the router, potentially leading to a complete loss of network service. Imagine your internet just dropping out during a crucial moment! While there’s no known active exploitation yet, it’s still a high-risk situation waiting to happen.

Put simply

Think of it like a restaurant with a kitchen that has a limit on how many orders it can take. If the chef keeps accepting orders beyond that limit, chaos ensues — just like how this vulnerability can cause the router to crash if overwhelmed with requests. This vulnerability stems from a stack overflow in the TP-LINK TL-WR886N router's registerRequestHandle function, allowing attackers to overrun the stack and cause a denial-of-service condition.

What to do

An attacker could exploit this stack overflow to crash the router, potentially leading to a complete loss of network service. Imagine your internet just dropping out during a crucial moment! While there’s no known active exploitation yet, it’s still a high-risk situation waiting to happen. Update your router’s firmware immediately to the latest version to patch this vulnerability. Regularly checking for firmware updates is a good practice to maintain security. Also, consider changing default admin credentials and limiting external access. You've got this! Stay vigilant and secure your network today! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01027 · 63.3th percentile
Published
2023-10-25T00:00Z
EPSS history
Timeline
  • 25 OCT 00:00Z
    TP-LINK TL-WR886N V7.0_3.0.14_Build_221115_Rel.56908n.bin was discovered to contain a stack overflow via the function registerRequestHandle
    cvelistv5