CVE-2025-70039

CriticalRCE

Published: 09 March 2026

Published

09 March 2026

Modified

13 March 2026

KEV Added

—

Patch

—

CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0007 20.5th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-70039 is a critical-severity OS Command Injection (CWE-78) vulnerability in Linagora Twake. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly addresses CWE-78 by enforcing validation and sanitization of user-supplied inputs before they are passed to OS commands, preventing command injection exploitation.

SI-2 Flaw Remediation good match

prevent

Requires identification, reporting, and correction of the specific flaw in Twake v2023.Q1.1223, enabling patching or mitigation as per vendor advisories.

RA-5 Vulnerability Monitoring and Scanning good match

detect

Vulnerability scanning identifies command injection flaws like CVE-2025-70039 in the Twake platform for subsequent remediation.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.004 Unix Shell Execution

Adversaries may abuse Unix shell commands and scripts for execution.

attack.mitre.org →

Why these techniques?

OS command injection in public-facing app enables remote unauthenticated arbitrary command execution via Unix shell.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

An issue pertaining to CWE-78: Improper Neutralization of Special Elements used in an OS Command was discovered in linagora Twake v2023.Q1.1223.

Deeper analysisAI

CVE-2025-70039 is a critical vulnerability, scored at 9.8 under CVSS 3.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), stemming from CWE-78: Improper Neutralization of Special Elements used in an OS Command. It affects Linagora Twake version 2023.Q1.1223, an open-source collaboration platform. The issue enables OS command injection due to inadequate sanitization of user-supplied inputs passed to system commands.

Remote attackers require no authentication, privileges, or user interaction and can exploit the flaw over the network with low attack complexity. Successful exploitation grants high-impact access to confidentiality, integrity, and availability, allowing arbitrary OS command execution on the affected system and potential full compromise of the Twake instance.

Mitigation details are available in vendor resources, including the Linagora GitHub organization at https://github.com/linagora, the Twake repository at https://github.com/linagora/Twake, and a specific advisory gist at https://gist.github.com/zcxlighthouse/62ad88841b308e184220af2f3c19ec38. The CVE was published on 2026-03-09T18:16:15.210.