CVE-2025-27920

Srimax Output Messenger

Published 5 May 2025 · updated 17 Jun 2026 · Analyzed

8.8 High · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 19 May 2025, with a remediation deadline of 9 Jun 2025 for US federal agencies.

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.

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.

References

www.outputmessenger.com/cve-2025-27920/ · Vendor Advisory
www.srimax.com/products-2/output-messenger/ · Product
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-27920 · US Government Resource
www.microsoft.com/en-us/security/blog/2025/05/12/marbled-dust-leverages-zero-day-in-output-messenger-for-regional-espionage/ · Mitigation, Third Party Advisory