CVE-2020-0981

Status: ModifiedHigh (8.8)—

A security feature bypass vulnerability exists when Windows fails to properly handle token relationships.An attacker who successfully exploited the vulnerability could allow an application with a certain integrity level to execute code at a different integrity level, leading to a sandbox escape.The update addresses the vulnerability by correcting how Windows handles token relationships, aka 'Windows Token Security Feature Bypass Vulnerability'.

CVSS

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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.27%
Percentile among all scored CVEs: 69
Score date: 10/17/2026

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.

Primary impactT1134 Access Token Manipulationstealth · privilege escalation
Secondary impactT1068 Exploitation for Privilege Escalationprivilege escalation
Secondary impactT1497 Virtualization/Sandbox Evasionstealth · discovery

Source: official MITRE CTID mapping (CVE → ATT&CK).

🛡️ ATT&CK mitigations that cover these techniques

User Account Management Threat Intelligence Program Privileged Account Management Execution Prevention Application Isolation and Sandboxing Exploit Protection

Affected technologies (2)

Microsoft — Windows 10 Microsoft — Windows Server 2016

CWEs

CWE-863

References

Raw JSON (NVD)

Show

{
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      "value": "A security feature bypass vulnerability exists when Windows fails to properly handle token relationships.An attacker who successfully exploited the vulnerability could allow an application with a certain integrity level to execute code at a different integrity level, leading to a sandbox escape.The update addresses the vulnerability by correcting how Windows handles token relationships, aka 'Windows Token Security Feature Bypass Vulnerability'."
    },
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    }
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  "lastModified": "2026-06-17T02:47:07.853",
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