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High 7.6Published Nov 26, 2025
CVE-2025-64129Zenitel TCIV-3+ Out-of-bounds Write
Updated under an hour ago ()
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It affects Zenitel TCIV-3+. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Zenitel TCIV-3+ is vulnerable to an out-of-bounds write vulnerability, which could allow a remote attacker to crash the device.
- CVSS
- 7.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- icscert
- NVD analysis
- Deferred
- Record last updated
- Nov 26, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Zenitel TCIV-3+ zenitel:tciv_3+ (from the name) | through 9.3.3.0 | CNA record |
References
- https://wiki.zenitel.com/wiki/Downloads#Station_and_Device_Firmware_Package_.28VS-IS.29
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-329-03
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-329-03.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.