CVE-2025-27920
Published 2025-05-05 · Updated 2026-06-17 · Source cve@mitre.org
Summary
CVE-2025-27920 is a high-severity (CVSS 7.2) vulnerability in Srimax Output Messenger. CISA added it to the Known Exploited Vulnerabilities catalog on May 19, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 9, 2025. CISA does not currently list it as used in ransomware campaigns.
All 1 known-exploited Srimax vulnerabilities →Description
Output Messenger before 2.0.63 was vulnerable to a directory traversal attack through improper file path handling. By using ../ sequences in parameters, attackers could access sensitive files outside the intended directory, potentially leading to configuration leakage or arbitrary file access.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CISA Known-Exploited Vulnerability
Product: Srimax — Output Messenger
Name: Srimax Output Messenger Directory Traversal Vulnerability
Date added: 2025-05-19 · Due: 2025-06-09
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
References
- https://www.outputmessenger.com/cve-2025-27920/
- https://www.srimax.com/products-2/output-messenger/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-27920
- https://www.microsoft.com/en-us/security/blog/2025/05/12/marbled-dust-leverages-zero-day-in-output-messenger-for-regional-espionage/

