CVE-2021-44626

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the /cloud_config/router_post/get_reg_verify_code feature, which allows malicious…

published March 9, 2022

CVSS
—
EPSS
3%
Percentile
85.1
In the wild
Unconfirmed
What it is

⚠️ This buffer overflow vulnerability in the TP-LINK WR-886N could let attackers run their own code, like a mischievous teen sneaking into the kitchen for a midnight snack! 🍕 Think of this like a crowded restaurant kitchen where one chef accidentally spills too much sauce into a pot, causing it to overflow onto the floor — if left unchecked, it could create a slippery mess! In this case, an attacker can send a specially crafted request that overflows the buffer, leading to arbitrary code execution. If exploited, an attacker could potentially take control of the router, leading to unauthorized access to sensitive information, disruption of network services, or even further exploitation within the local network. That's like an intruder taking over the kitchen and serving unsanitary dishes to all diners!

Put simply

Think of this like a crowded restaurant kitchen where one chef accidentally spills too much sauce into a pot, causing it to overflow onto the floor — if left unchecked, it could create a slippery mess! In this case, an attacker can send a specially crafted request that overflows the buffer, leading to arbitrary code execution. This vulnerability exists in the /cloud_config/router_post/get_reg_verify_code feature, allowing attackers to exploit a buffer overflow through a crafted POST request, thus executing arbitrary code on the device.

What to do

If exploited, an attacker could potentially take control of the router, leading to unauthorized access to sensitive information, disruption of network services, or even further exploitation within the local network. That's like an intruder taking over the kitchen and serving unsanitary dishes to all diners! To mitigate this risk, users should patch their devices to the latest firmware version and disable any unnecessary services. Regularly audit router configurations and ensure strong access controls are in place to minimize exposure. You've got this! By staying updated and vigilant, you can keep your network safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02576 · 85.1th percentile
Published
2022-03-09T21:37Z
EPSS history
Timeline
  • 09 MAR 21:37Z
    A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the /cloud_config/router_post/get_reg_verify_code feature, which allows malicious…
    cvelistv5