Cybercriminals Exploit Command Injection Vulnerability in SiteGuard WAF Server Edition
EG Secure Solutions has confirmed active exploitation of CVE-2026-106931, a command injection flaw in the statistics processing function of SiteGuard Server Edition. The vulnerability, classified as CWE-78, allows local attackers with low privileges to execute arbitrary system commands as root on Unix systems or SYSTEM on Windows without user interaction. CVSS scores rate the issue at 8.5 under version 4.0 and 7.8 under version 3.0, affecting installations from version 2.20 onward when statistics are enabled by default. Specific version ranges for Apache, Nginx, and IIS editions on FreeBSD and other platforms determine the exact impact, with some IIS versions remaining unaffected. The vendor notified direct support customers on September 29, followed by public advisories from JVN on October 14 and JPCERT/CC. Organizations unable to update can apply a targeted patch or disable the statistics feature, though the patch erases attack traces, requiring prior diagnostic data collection.
BoletimSecOct 20, 2026Translated from Portuguese