Trellix DLP on-prem extensions up to 11.13.1 OpenEventEvidenceFile.do Prefix server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00+

Summaryinfo

A vulnerability was found in Trellix DLP on-prem extensions up to 11.13.1. It has been declared as critical. This vulnerability affects unknown code of the file OpenEventEvidenceFile.do. Executing a manipulation of the argument Prefix can lead to server-side request forgery. This vulnerability is registered as CVE-2026-115740. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Trellix DLP on-prem extensions up to 11.13.1 and classified as critical. This vulnerability affects some unknown processing of the file OpenEventEvidenceFile.do. The manipulation of the argument Prefix with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at support.trellix.com. This vulnerability was named CVE-2026-115740 since 10/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/05/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/23/2026 CVE reserved
11/05/2026 +13 days Advisory disclosed
11/05/2026 +0 days VulDB entry created
11/05/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.trellix.com
Status: Confirmed

CNA: trellix
CVE: CVE-2026-115740 (🔒)

GCVE (CVE): GCVE-0-2026-115740
GCVE (VulDB): GCVE-100-431500

Entryinfo

Created: 11/05/2026 16:46
Changes: 11/05/2026 16:46 (66)
Complete: 🔍
Cache ID: 216::103

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