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Fencer Intel
high 7.8

CVE-2026-106931 kev in the critical feed json

SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with…

published 26d ago modified 19d ago also EUVD-2026-100814

cvss
7.8
version 3.0, CNA
cisa kev
Exploited
added 2026-10-20
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

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.

Patch / fix

cisa required action Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

  • EG Secure Solutions Inc. SiteGuard Server Edition for Apache httpd Ver8.00 Update 5
  • EG Secure Solutions Inc. SiteGuard Server Edition for Nginx Ver8.00 Update 5
  • EG Secure Solutions Inc. SiteGuard Server Edition for IIS Ver3.10, Ver8.00 Update 5
  • EG Secure Solutions Inc. SiteGuard Server Edition for Apache httpd on FreeBSD Ver7.00 Update 6
  • EG Secure Solutions Inc. SiteGuard Server Edition for Nginx on FreeBSD Ver7.00 Update 6

Is CVE-2026-106931 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. Published
  2. CISA SSVC: exploitation active
  3. Added to CISA KEV
  4. CISA patch deadline

Known exploited

Added
20d ago
Patch by
2026-10-23 (17d ago)
Ransomware
Not known
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Vendor, product
EG Secure Solutions, SiteGuard Server Edition
CISA name
EG Secure Solutions SiteGuard Server Edition OS Command Injection Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
20d ago

Exploit prediction

2.53% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • EG Secure Solutions Inc. SiteGuard Server Edition for Apache httpd
  • EG Secure Solutions Inc. SiteGuard Server Edition for Nginx
  • EG Secure Solutions Inc. SiteGuard Server Edition for IIS
  • EG Secure Solutions Inc. SiteGuard Server Edition for Apache httpd on FreeBSD
  • EG Secure Solutions Inc. SiteGuard Server Edition for Nginx on FreeBSD

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.