CVE-2025-64128

published 2025-11-26

CVE-2025-64128: An OS command injection vulnerability exists due to incomplete validation of user-supplied input. Validation fails to enforce sufficient formatting rules…

Priority P2 75 critical 10 CVSS 3.1

AV N AC L PR N UI N S C C H I H A H

An OS command injection vulnerability exists due to incomplete
validation of user-supplied input. Validation fails to enforce
sufficient formatting rules, which could permit attackers to append
arbitrary data. This could allow an unauthenticated attacker to inject
arbitrary commands.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
zenitel	tciv-3	<= 9.3.3.0	—

Detection & IOCs extracted from sources · hover to see the quote

• → CVE-2025-64128 affects Zenitel TCIV-3+ (all versions prior to 9.3.3.0): OS command injection via incomplete validation of user-supplied input that fails to enforce sufficient formatting rules, permitting attackers to append arbitrary data — exploitable remotely with no authentication required ↗
• → Attack vector is network (AV:N), no authentication required (PR:N), no user interaction (UI:N) — prioritize detection of unauthenticated remote requests to Zenitel TCIV-3+ management interfaces that contain shell metacharacters or command-appending sequences in user-supplied parameters ↗
• → Zenitel TCIV-3+ devices should be monitored for unexpected OS command execution originating from web/API parameters; the vulnerability class (CWE-78) suggests injected commands may be appended to existing OS command strings via characters such as semicolons, pipes, or backticks ↗

• · No known public exploitation has been reported at time of advisory publication; no specific exploit code, payload samples, or IOCs (hashes, IPs, domains, URLs) were disclosed in the available sources ↗
• · All versions of Zenitel TCIV-3+ prior to 9.3.3.0 are affected; patched version is 9.3.3.0 or later — version fingerprinting of exposed devices is recommended to prioritize remediation ↗

CVSS provenance

nvd v3.1 10.0 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

nvd v4.0 10.0 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-78