Which products and versions are affected by CVE-2017-11394?

Affected: Officescan (Trendmicro) versions 11.0-sp1, 12.0; Trend Micro OfficeScan versions >= 11, XG (12). The full list is in the CVE brief.

Is CVE-2017-11394 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2017-11394 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2017-11394?

Public exploit code is available.

Is there a fix for CVE-2017-11394?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2017-11394 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2017-11394

CriticalPublic exploit

Proxy command injection vulnerability in Trend Micro OfficeScan 11 and XG (12) allows remote attackers to execute arbitrary code on vulnerable installations.

Published Aug 3, 2017 · Updated May 12, 2026

Key Facts

Patch immediately

CVE-2017-11394 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Officescan (Trendmicro), Trend Micro OfficeScan.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 67% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

67%

Higher than 99.2% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-11394 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Proxy command injection vulnerability in Trend Micro OfficeScan 11 and XG (12) allows remote attackers to execute arbitrary code on vulnerable installations. The specific flaw can be exploited by parsing the T parameter within Proxy.php. Formerly ZDI-CAN-4544.

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
OfficescanTrendmicro	11.0-sp1, 12.0	n/a
Trend Micro OfficeScan	>= 11, XG (12)	n/a

Timeline

Publicly disclosed
Aug 3, 2017
Last updated
May 12, 2026

Weakness Type

CWE-20 Improper Input Validation

References

advisory100130
advisoryhttp://www.zerodayinitiative.com/advisories/ZDI-17-521
patchhttps://success.trendmicro.com/solution/1117769
exploitMSF trendmicro_officescan_widget_exec.rb
exploitExploitDB-42971

1 more references in the full CVE brief

FAQ

Common Questions.

Proxy command injection vulnerability in Trend Micro OfficeScan 11 and XG (12) allows remote attackers to execute arbitrary code on vulnerable installations.
Affected: Officescan (Trendmicro) versions 11.0-sp1, 12.0; Trend Micro OfficeScan versions >= 11, XG (12). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2017-11394 Running On Your Attack Surface?

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