CVE-2012-10039

Critical

Description

ZEN Load Balancer versions 2.0 and 3.0-rc1 contain a command injection vulnerability in content2-2.cgi. The filelog parameter is passed directly into a backtick-delimited exec() call without sanitation. An authenticated attacker can inject arbitrary shell commands, resulting in remote code execution as the root user. ZEN Load Balancer is the predecessor of ZEVENET and SKUDONET. The affected versions (2.0 and 3.0-rc1) are no longer supported. SKUDONET CE is the current community-maintained successor.

SeverityCritical
CVSS9.4
Exploit probability—
ProductZEN Load Balancer
PublishedAug 11, 2025
First seenAug 11, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
ZEN Load Balancer ZEN Load Balancer2.0, 3.0-rc1—

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