CVE-2020-7261
Buffer overwrite in ENS allowed to bypass AMSI protection
Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security (ENS) Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Buffer overwrite in ENS allowed to bypass AMSI protection
Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security (ENS) Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input.
- Record
CVE-2020-7261- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2020-28388
Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security (ENS) Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input.
- Record
EUVD-2020-28388- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x222-6c25-wc8w No score
Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint...
Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security (ENS) Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input.
- Record
GHSA-x222-6c25-wc8w- Updated
- 2026-11-02
NVD
Buffer Overflow via Environment Variables vulnerability in AMSI component in McAfee Endpoint Security (ENS) Prior to 10.7.0 February 2020 Update allows local users to disable Endpoint Security via a carefully crafted user input.
- Record
CVE-2020-7261- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-119, CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7261 is a medium vulnerability (CVSS 6.1) in Mcafee Endpoint Security, published April 15, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.