CVE-2026-111216

Status: AnalyzedHigh (8.6)—

Severity8.6High · CVSS 4.0

Exploitation probability4.63 %higher than 92% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with gateway edit privileges to execute commands as root by injecting shell metacharacters into an IPv6 link-local zone index. Attackers can set a gateway Monitor IP whose unvalidated zone carries a payload, which start_dpinger() passes unescaped to the dpinger shell command when monitoring is applied.

CVSS

Base score: 8.6
Version: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.63 %
Percentile among all scored CVEs: 92
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement90 %
Primary impactT1059 Command and Scripting Interpreterexecution90 %
Secondary impactT1068 Exploitation for Privilege Escalationprivilege escalation60 %

Vector AV:N con PR:H y UI:N: explotación remota con privilegios (T1210). El texto indica ejecución de comandos como root mediante inyección de metacaracteres en la zona IPv6.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Threat Intelligence Program Privileged Account Management Execution Prevention Disable or Remove Feature or Program Application Isolation and Sandboxing Exploit Protection

Affected technologies (1)

Pfsense — Pfsense

CWEs

CWE-78

References

Show 5 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-111216",
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        "source": "disclosure@vulncheck.com",
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          "exploitMaturity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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  "published": "2026-10-15T19:17:33.907",
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      "tags": [
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      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://github.com/abraxas/pfsense-gw-ipv6-zone",
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      "tags": [
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    {
      "url": "https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/util.inc#L1418",
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      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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        }
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    {
      "lang": "en",
      "value": "Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with gateway edit privileges to execute commands as root by injecting shell metacharacters into an IPv6 link-local zone index. Attackers can set a gateway Monitor IP whose unvalidated zone carries a payload, which start_dpinger() passes unescaped to the dpinger shell command when monitoring is applied."
    }
  ],
  "lastModified": "2026-10-19T20:43:35.890",
  "configurations": [
    {
      "nodes": [
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          "operator": "OR"
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  "sourceIdentifier": "disclosure@vulncheck.com"
}