CVE-2021-23893
CVE-2021-23893 is a high-severity vulnerability in Mcafee Drive Encryption with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-269
- Affected product: Mcafee Drive Encryption
- Published:
- Last modified:
Description
Privilege Escalation vulnerability in a Windows system driver of McAfee Drive Encryption (DE) prior to 7.3.0 could allow a local non-admin user to gain elevated system privileges via exploiting an unutilized memory buffer.
Frequently asked questions
- What is CVE-2021-23893?
- Privilege Escalation vulnerability in a Windows system driver of McAfee Drive Encryption (DE) prior to 7.3.0 could allow a local non-admin user to gain elevated system privileges via exploiting an unutilized memory buffer.
- How severe is CVE-2021-23893?
- CVE-2021-23893 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-23893 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-23893?
- CVE-2021-23893 primarily affects Mcafee Drive Encryption. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-23893?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-23893 published?
- CVE-2021-23893 was published on 2021-10-01 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:mcafee:drive_encryption:*:*:*:*:*:*:*:*
- cpe:2.3:a:mcafee:drive_encryption:7.3.0:-:*:*:*:*:*:*
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