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CVE-2016-8591

26
FAUCET Score

CVE-2016-8591 describes a critical command injection vulnerability in Trend Micro Threat Discovery Appliance versions 2.6.1062r1 and earlier. Authenticated attackers can leverage shell metacharacters in the cache_id parameter of log_query.cgi to execute arbitrary code as the root user. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk of complete compromise (confidentiality, integrity, and availability). While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential for remote root access makes this a significant concern for affected organizations.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.1062CPE matchmatch criteria
cpe:2.3:a:trendmicro:threat_discovery_appliance:*:r1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.25%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0625 is in the 92nd percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/142217/Trend-Micro-Threat-Discovery-Appliance-2.6.1062r1-log_query.cgi-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/98343