CVE-2026-78020

Status: AnalyzedHigh (8.8)—

Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Denial of service, Information disclosure, and Remote execution.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base score: 8.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.18%
Percentile among all scored CVEs: 7
Score date: 10/14/2026

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.

ExploitationT1203 Exploitation for Client Executionexecution75 %
Primary impactT1557 Adversary-in-the-Middlecredential access · collection70 %
Secondary impactT1005 Data from Local Systemcollection60 %
Secondary impactT1498.002 Reflection Amplificationimpact65 %

CWE-295 (validación de certificados impropia) con UI:R permite ataque en el lado del cliente (MITM tras interacción del usuario). Acceso remoto sin autenticación, impactos CIA completos.

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

Filter Network Traffic User Training Network Segmentation Network Intrusion Prevention Limit Access to Resource Over Network Encrypt Sensitive Information

Affected technologies (1)

Dell — Policy Manager FOR Secure Connect Gateway

CWEs

CWE-295

References

https://www.dell.com/support/kbdoc/en-ca/000503592/dsa-2026-385-security-update-for-dell-secure-connect-gateway-policy-manager-multiple-vulnerabilities?msockid=3021cac2195069ed3194ddad186a68f9

Raw JSON (NVD)

Show

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