How severe is CVE-2020-7261?

CVE-2020-7261 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2020-7261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7261?

CVE-2020-7261 primarily affects Mcafee Endpoint Security. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-7261?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-7261 published?

CVE-2020-7261 was published on 2020-04-15 and last updated on 2026-06-17.

CVE-2020-7261

CVE-2020-7261 is a medium-severity vulnerability in Mcafee Endpoint Security with a CVSS 3.x base score of 6.1. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 2.1
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Mcafee Endpoint Security
Published: 2020-04-15
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-7261?: 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.
How severe is CVE-2020-7261?: CVE-2020-7261 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2020-7261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7261?: CVE-2020-7261 primarily affects Mcafee Endpoint Security. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-7261?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-7261 published?: CVE-2020-7261 was published on 2020-04-15 and last updated on 2026-06-17.

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10309

Affected products (7)

cpe:2.3:a:mcafee:endpoint_security:10.5.0:*:*:*:*:windows:*:*
cpe:2.3:a:mcafee:endpoint_security:10.5.1:*:*:*:*:windows:*:*
cpe:2.3:a:mcafee:endpoint_security:10.5.2:*:*:*:*:windows:*:*
cpe:2.3:a:mcafee:endpoint_security:10.5.3:*:*:*:*:windows:*:*
cpe:2.3:a:mcafee:endpoint_security:10.5.4:*:*:*:*:windows:*:*
cpe:2.3:a:mcafee:endpoint_security:10.5.5:*:*:*:*:windows:*:*
cpe:2.3:a:mcafee:endpoint_security:10.6.0:*:*:*:*:windows:*:*

More vulnerabilities in Mcafee Endpoint Security

CVE-2020-7319 — High (CVSS 8.8): Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2020…
CVE-2020-7265 — High (CVSS 8.8): Privilege Escalation vulnerability in McAfee Endpoint Security (ENS) for Mac prior to 10.6.9 allows local users to…
CVE-2020-7264 — High (CVSS 8.8): Privilege Escalation vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 Hotfix 199847 allows…
CVE-2019-3582 — High (CVSS 8.6): Privilege Escalation vulnerability in Microsoft Windows client in McAfee Endpoint Security (ENS) 10.6.1 and earlier…
CVE-2020-7257 — High (CVSS 8.4): Privilege escalation vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update…
CVE-2021-23882 — High (CVSS 8.2): Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021…

All CVEs affecting Mcafee Endpoint Security →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →