CVE-2017-11387: Authentication Bypass in Trend Micro Control Manager 6.0 causes Information Disclosure when authentication val

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HIGH 7.5REMOTEDOWNGRADE

CVE-2017-11387 is a high-severity flaw (CVSS 7.5) affecting control manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Authentication Bypass in Trend Micro Control Manager 6.0 causes Information Disclosure when authentication validation is not done for functionality that can change debug logging level. Formerly ZDI-CAN-4512.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	14.8% (top 3%)
CISA exploited list	No
Weakness	CWE-200
Published	2017-08-02
Last modified	2026-06-17

Publisher (CNA): Trend Micro, Inc. · Vendor: trendmicro

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-08-02 21:29 UTCPublished CVE record published
2026-06-17 01:01 UTCUpdated Record last modified

trendmicro control manager DOWNGRADE

Affected: 6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

1. Check installed version

apt-cache policy control-manager || rpm -q control-manager || control-manager --version

2. No fixed release: DOWNGRADE to a release before 6.0 (Debian / Ubuntu)

apt-cache madison control-manager sudo apt install control-manager=<VERSION_BEFORE_6.0> sudo apt-mark hold control-manager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list control-manager sudo dnf downgrade control-manager-<VERSION_BEFORE_6.0> sudo dnf versionlock add control-manager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-11387?

control manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-11387 being exploited?

CVE-2017-11387 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-11387 affect?

CVE-2017-11387 affects control manager. Severity is high (CVSS 7.5). Authentication Bypass in Trend Micro Control Manager 6.0 causes Information Disclosure when authentication validation is not done for functionality that can change debug logging level. Formerly ZDI-CAN-4512.

How urgent is CVE-2017-11387?

Priority 55/100. High severity; EPSS top 3%: very likely to be exploited; Remotely exploitable, no login, no user action

Software pages

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References

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