CVE-2023-29693

H3C GR-1200W MiniGRW1A0V100R006 was discovered to contain a stack overflow via the function set_tftp_upgrad

Critical · published May 8, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
60.2
In the wild
Unconfirmed
What it is

🚨 A stack overflow in the H3C GR-1200W MiniGRW1A0V100R006 router could give attackers a free pass to mess with your network! 🔥 Think of it like a crowded elevator where the weight limit is ignored — too many people pushing in can lead to a breakdown. In this case, the router’s function set_tftp_upgrad can't handle the excess, causing it to crash or behave unexpectedly. If exploited, this vulnerability could allow an attacker to take control of the device, potentially disrupting your entire network. Imagine someone hijacking your elevator, pressing random buttons, and sending it into a free fall — that's the kind of chaos this flaw could unleash.

Put simply

Think of it like a crowded elevator where the weight limit is ignored — too many people pushing in can lead to a breakdown. In this case, the router’s function set_tftp_upgrad can't handle the excess, causing it to crash or behave unexpectedly. This critical stack overflow vulnerability occurs in the set_tftp_upgrad function, which fails to properly validate input, leading to potential remote code execution if an attacker sends a crafted payload.

What to do

If exploited, this vulnerability could allow an attacker to take control of the device, potentially disrupting your entire network. Imagine someone hijacking your elevator, pressing random buttons, and sending it into a free fall — that's the kind of chaos this flaw could unleash. Immediate action is needed: update the firmware of the H3C GR-1200W MiniGRW1A0V100R006 to the latest version available, and monitor network traffic for any suspicious activity. Don't delay — keeping your devices patched is your best defense! You've got this! Follow these steps, and you'll ensure your network stays safe and sound! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00928 · 60.2th percentile
Published
2023-05-08T00:00Z
EPSS history
Timeline
  • 08 MAY 00:00Z
    H3C GR-1200W MiniGRW1A0V100R006 was discovered to contain a stack overflow via the function set_tftp_upgrad
    cvelistv5