CVE-2023-41562

Tenda AC7 V1.0 V15.03.06.44, Tenda AC9 V3.0 V15.03.06.42_multi, and Tenda AC5 US_AC5V1.0RTL_V15.03.06.28 were discovered to contain a stack overflow via…

published August 30, 2023

CVSS
—
EPSS
1%
Percentile
57.4
In the wild
Unconfirmed
What it is

⚠️ A sneaky stack overflow is lurking in select Tenda router firmware versions! This flaw can potentially disrupt your network's stability like a surprise storm knocking out power when you least expect it. 🌩️ Think of it like a waiter at a restaurant who keeps taking orders but can't manage the kitchen's capacity—eventually, the system crashes under the weight of too many requests. This stack overflow at the /goform/PowerSaveSet endpoint allows for excessive parameters, leading to chaos in the router's operation. If exploited, an attacker could cause the router to crash or behave unpredictably, disrupting your internet connectivity. While currently not known to be actively exploited, it poses a potential risk that shouldn’t be ignored.

Put simply

Think of it like a waiter at a restaurant who keeps taking orders but can't manage the kitchen's capacity—eventually, the system crashes under the weight of too many requests. This stack overflow at the /goform/PowerSaveSet endpoint allows for excessive parameters, leading to chaos in the router's operation. This vulnerability in Tenda AC7 V1.0, AC9 V3.0, and AC5 routers arises from a stack overflow triggered by the 'time' parameter at the /goform/PowerSaveSet URL, allowing for unexpected behavior due to improper handling of input sizes.

What to do

If exploited, an attacker could cause the router to crash or behave unpredictably, disrupting your internet connectivity. While currently not known to be actively exploited, it poses a potential risk that shouldn’t be ignored. To mitigate this, first, check your router's firmware version and update to the latest available version where the issue is patched. Additionally, monitor your network for any unusual activity that might indicate attempts to exploit this vulnerability. You've got this! Stay proactive and secure your network by following these steps! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00838 · 57.4th percentile
Published
2023-08-30T00:00Z
EPSS history
Timeline
  • 30 AUG 00:00Z
    Tenda AC7 V1.0 V15.03.06.44, Tenda AC9 V3.0 V15.03.06.42_multi, and Tenda AC5 US_AC5V1.0RTL_V15.03.06.28 were discovered to contain a stack overflow via…
    cvelistv5