CVE-2025-27920
KEVSrimax Output Messenger Directory Traversal Vulnerability
Description
Srimax Output Messenger contains a directory traversal vulnerability that allows an attacker to access sensitive files outside the intended directory, potentially leading to configuration leakage or arbitrary file access.
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 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NPublishedMay 5, 2025
Last modifiedJun 17, 2026
Added to KEVMay 19, 2025
Remediation dueJun 9, 2025
References
- outputmessenger.com/cve-2025-27920/Vendor Advisory
- srimax.com/products-2/output-messenger/Product
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-27920US Government Resource
- microsoft.com/en-us/security/blog/2025/05/12/marbled-dust-leverages-zero-day-in-output-messenger-for-regional-espionage/MitigationThird Party Advisory
0 recent articles mention this CVE
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Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 504 days
- CVSS
- 7.2 HIGH
- EPSS (30-day exploit probability)
- 1.9% · top 21% of all CVEs
- Weakness
- CWE-24
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.