CVE-2026-115740

SSRF Vulnerability in Trellix DLP on‑Prem Extensions Allowing Server to Connect to Attacker‑Controlled SMB Share

Published Nov 5, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Server side request forgery vulnerability exists in the DLP on-prem extensions version 11.13.1 and earlier allows the file Prefix parameter in the OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without validation. The server-side code attempts to open the specified file path, causing Windows to resolve the hostname and initiate SMB authentication to the attacker-controlled host.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Trellix
Trellix dlp On-prem Extensions
Vendors & Products Trellix
Trellix dlp On-prem Extensions
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Type Values Removed Values Added
Title SSRF Vulnerability in Trellix DLP on‑Prem Extensions Allowing Server to Connect to Attacker‑Controlled SMB Share
Type Values Removed Values Added
Description Server side request forgery vulnerability exists in the DLP on-prem extensions version 11.13.1 and earlier allows the file Prefix parameter in the OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without validation. The server-side code attempts to open the specified file path, causing Windows to resolve the hostname and initiate SMB authentication to the attacker-controlled host.
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
trellix
Published
Updated
Nov 5, 2026, 5:08 PM
Reserved
Oct 23, 2026, 12:04 PM
Status
Awaiting Analysis
Published
Nov 5, 2026, 4:17 PM
Modified
Nov 12, 2026, 9:30 PM