CVE-2023-40898

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter timeZone at /goform/SetSysTimeCfg

published August 24, 2023

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

⚠️ A sneaky stack overflow is lurking in the Tenda AC8 router! It’s ready to pounce via a parameter at /goform/SetSysTimeCfg — talk about a time bomb! 💣 Think of it like a conveyor belt at a factory that keeps piling on boxes without stopping. Eventually, it overflows, causing a complete jam and halting all production — that’s what could happen with this vulnerability! If an attacker manipulates the timeZone parameter, it could potentially crash the router or make it behave unpredictably, leading to a complete service disruption. While no one is exploiting this right now, the possibility is absolutely devastating if someone decides to take advantage of it!

Put simply

Think of it like a conveyor belt at a factory that keeps piling on boxes without stopping. Eventually, it overflows, causing a complete jam and halting all production — that’s what could happen with this vulnerability! This stack overflow vulnerability occurs when the timeZone parameter is not properly validated, allowing an attacker to overflow the stack and disrupt the normal operation of the router.

What to do

If an attacker manipulates the timeZone parameter, it could potentially crash the router or make it behave unpredictably, leading to a complete service disruption. While no one is exploiting this right now, the possibility is absolutely devastating if someone decides to take advantage of it! To mitigate this issue, update your Tenda AC8 router firmware to the latest version as soon as it becomes available. Additionally, consider monitoring any unusual traffic patterns that may indicate an attempt to exploit this vulnerability. 🛡️ This is fixable! Stay alert and keep your router updated, and you'll keep the bad guys at bay! You've got this! 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00838 · 57.4th percentile
Published
2023-08-24T00:00Z
EPSS history
Timeline
  • 24 AUG 00:00Z
    Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter timeZone at /goform/SetSysTimeCfg
    cvelistv5