SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-11393

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

CRITICAL 9.8EPSS 15.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 15.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

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 tr parameter within Proxy.php. Formerly ZDI-CAN-4543.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
15.89% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
trendmicro/officescan
Source
security@trendmicro.com
EPSS trend
0%10%20%21 September 2026: 14.52%22 September 2026: 15.89%27 October 2026: 15.89%21 September 202627 October 2026

EPSS moved from 14.5% on 21 September 2026 to 15.9% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.