CVE-2025-27920: Srimax Output Messenger Directory Traversal Vulnerability
Affects Srimax Output MessengerSource CISA KEV
Exploited in the wild · KEV due 9 Jun 2025 · 1% EPSS : apply the vendor's fix or mitigations to Srimax Output Messenger now.
Data as of 10/24/2026, 22:16:00 UTC
- Exploitation
Actively exploited – in CISA KEV since 05/19/2025
- KEV deadline
- 06/09/2025 US federal agencies must patch by this date; a sensible deadline for everyone else.
- EPSS
- 1.8% chance of exploitation in 30 days – higher than 79% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NWhat to do
CISA 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
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.
Weaknesses
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #6OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.