CVE-2025-64129CWE-787

CVE-2025-64129

High · published November 26, 2025

CVSS v3.1
7.6
EPSS
0%
Percentile
37.2
In the wild
Unconfirmed
What it is

⚡ An out-of-bounds write vulnerability lurking in the Zenitel TCIV-3+ could let attackers crash the device remotely – a true recipe for chaos! Think of it like a jigsaw puzzle where a piece is forced into the wrong spot, causing the whole thing to fall apart. That's how this vulnerability works, disrupting the normal operation of your device by writing data outside its designated area. If exploited, this vulnerability could lead to a complete device crash, disrupting communication and operations. Imagine a critical safety system going offline just when you need it most – absolutely devastating!

Put simply

Think of it like a jigsaw puzzle where a piece is forced into the wrong spot, causing the whole thing to fall apart. That's how this vulnerability works, disrupting the normal operation of your device by writing data outside its designated area. This out-of-bounds write flaw allows remote attackers to send data to improper memory locations, leading to crashes and potential denial of service. Proper input validation is essential to prevent these rogue writes from occurring.

What to do

If exploited, this vulnerability could lead to a complete device crash, disrupting communication and operations. Imagine a critical safety system going offline just when you need it most – absolutely devastating! Update the Zenitel TCIV-3+ to the latest firmware as soon as it's available. Additionally, review device logs for any unusual activity and implement strict network access controls to minimize exposure. Being proactive is key! You’ve got this! With these steps, you can secure your devices and keep things running smoothly. 🛡️

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00441 · 37.2th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2025-11-26T23:15Z
References (3)
EPSS history
Timeline
  • 26 NOV 17:54Z
    Zenitel TCIV-3+ Out-of-bounds Write
    cvelistv5