CVE-2025-64129 Zenitel TCIV-3+ Out-of-bounds Write
A remote attacker can crash the Zenitel TCIV-3+ intercom device via an out-of-bounds write vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-64129?
CVE-2025-64129 is a high-severity memory corruption vulnerability in Zenitel TCIV-3+, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Zenitel TCIV-3+ is vulnerable to an out-of-bounds write vulnerability, which could allow a remote attacker to crash the device.
Weakness: CWE-787
Which versions are affected by CVE-2025-64129?
How do I fix CVE-2025-64129?
No fix has been published for CVE-2025-64129 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-64129 being exploited?
There is no known exploitation of CVE-2025-64129 in the wild and no public exploit code.
Sources
Also known as GHSA-prm5-j94f-rr92.