What’s Vulnerable › Vulnerabilities

CVE-2025-64129: Zenitel TCIV-3+ Out-of-bounds Write

• Severity: high (CVSS 7.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-26 · updated 2026-10-18
• Weakness: CWE-787

Description

Zenitel TCIV-3+ is vulnerable to an out-of-bounds write vulnerability, which could allow a remote attacker to crash the device.

Affected products

• Zenitel TCIV-3+: through 9.3.3.0

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-329-03.json
• 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

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