# CVE-2026-106931

SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product.

- Page: https://www.vulneraibility.com/cve/CVE-2026-106931
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2026-10-20; CISA due date 2026-10-23
- EPSS: 2.53%
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2026-10-20)
- Weakness: CWE-78
- Published: 2026-10-14

## Affected versions

- EG Secure Solutions Inc. SiteGuard Server Edition for Apache httpd: affected >= Ver2.20 and < Ver8.00 Update 5
- EG Secure Solutions Inc. SiteGuard Server Edition for Apache httpd on FreeBSD: affected >= Ver2.20 and < Ver7.00 Update 6
- EG Secure Solutions Inc. SiteGuard Server Edition for IIS: affected >= Ver2.20 and < Ver8.00 Update 5
- EG Secure Solutions Inc. SiteGuard Server Edition for Nginx: affected >= Ver2.20 and < Ver8.00 Update 5
- EG Secure Solutions Inc. SiteGuard Server Edition for Nginx on FreeBSD: affected >= Ver2.20 and < Ver7.00 Update 6

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://www.eg-secure.co.jp/siteguard/news/alert-202610-1
- [other] https://jvn.jp/en/jp/JVN88474777/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-106931

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.