How severe is CVE-2021-47761?

CVE-2021-47761 has a CVSS 3.x base score of 7.8, 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-2021-47761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2021-47761?

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.

Does CVE-2021-47761 have an EU (EUVD) identifier?

Yes. CVE-2021-47761 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2779.

When was CVE-2021-47761 published?

CVE-2021-47761 was published on 2026-01-15 and last updated on 2026-06-17.

CVE-2021-47761

CVE-2021-47761 is a high-severity vulnerability with a CVSS 3.x base score of 7.8. 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.5
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2779
Weakness: CWE-276
Published: 2026-01-15
Last modified: 2026-06-17

Description

MilleGPG5 5.7.2 contains a local privilege escalation vulnerability that allows authenticated users to modify service executable files in the MariaDB bin directory. Attackers can replace the mysqld.exe with a malicious executable, which will execute with system privileges when the computer restarts.

Frequently asked questions

What is CVE-2021-47761?: MilleGPG5 5.7.2 contains a local privilege escalation vulnerability that allows authenticated users to modify service executable files in the MariaDB bin directory. Attackers can replace the mysqld.exe with a malicious executable, which will execute with system privileges when the computer restarts.
How severe is CVE-2021-47761?: CVE-2021-47761 has a CVSS 3.x base score of 7.8, 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-2021-47761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-47761?: 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.
Does CVE-2021-47761 have an EU (EUVD) identifier?: Yes. CVE-2021-47761 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2779.
When was CVE-2021-47761 published?: CVE-2021-47761 was published on 2026-01-15 and last updated on 2026-06-17.

References

Other CWE-276 (Incorrect Default Permissions) vulnerabilities

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CVE-2020-29491 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
CVE-2025-40585 — Critical (CVSS 9.9): A vulnerability has been identified in Energy Services (All versions with G5DFR). Affected solutions using G5DFR…
CVE-2019-19896 — Critical (CVSS 9.9): In IXP EasyInstall 6.2.13723, there is Remote Code Execution via weak permissions on the Engine Service share. The…
CVE-2020-37129 — Critical (CVSS 9.8): Memu Play 7.1.3 contains an insecure folder permissions vulnerability that allows low-privileged users to modify the…

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