SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-9315

Privilege Escalation Vulnerability in com.trend.iwss.gui.servlet.updateaccountadministration in Trend Micro InterScan Web Security Virtual Appliance (IWSVA) version 6.5-SP2_Build_Linux_1707 and earlier allows authenticated, remote users with least…

EXPLOIT ✓HIGH 8.8EPSS 8.98%

Does this matter?

A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 9.0%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

Privilege Escalation Vulnerability in com.trend.iwss.gui.servlet.updateaccountadministration in Trend Micro InterScan Web Security Virtual Appliance (IWSVA) version 6.5-SP2_Build_Linux_1707 and earlier allows authenticated, remote users with least privileges to change Master Admin's password and/or add new admin accounts. This was resolved in Version 6.5 CP 1737.

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
8.98% probability · 95th percentile
Public exploits
1 in Exploit-DB · verified · first 28 November 2016
CISA KEV
Not listed
Weakness
CWE-264
Affected
trendmicro/interscan web security virtual appliance
Source
cve@mitre.org
EPSS trend
0%5%10%21 September 2026: 7.15%22 September 2026: 8.98%27 October 2026: 8.98%21 September 202627 October 2026

EPSS moved from 7.1% on 21 September 2026 to 9.0% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-41361source ↗Trend Micro InterScan Web Security Virtual Appliance (IWSVA) 6.5 - Multiple Vulnerabilitieshardware · SlidingWindowwebapps28 November 2016yes

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