How severe is CVE-2021-47852?

CVE-2021-47852 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-47852 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2021-47852?

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-2021-47852 have an EU (EUVD) identifier?

Yes. CVE-2021-47852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3623.

When was CVE-2021-47852 published?

CVE-2021-47852 was published on 2026-01-21 and last updated on 2026-06-17.

CVE-2021-47852

CVE-2021-47852 is a high-severity vulnerability 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-276.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.5
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3623
Weakness: CWE-276
Published: 2026-01-21
Last modified: 2026-06-17

Description

Rockstar Games Launcher 1.0.37.349 contains a privilege escalation vulnerability that allows authenticated users to modify the service executable with weak permissions. Attackers can replace the RockstarService.exe with a malicious binary to create a new administrator user and gain elevated system access.

Frequently asked questions

What is CVE-2021-47852?: Rockstar Games Launcher 1.0.37.349 contains a privilege escalation vulnerability that allows authenticated users to modify the service executable with weak permissions. Attackers can replace the RockstarService.exe with a malicious binary to create a new administrator user and gain elevated system access.
How severe is CVE-2021-47852?: CVE-2021-47852 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-47852 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-47852?: 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-2021-47852 have an EU (EUVD) identifier?: Yes. CVE-2021-47852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3623.
When was CVE-2021-47852 published?: CVE-2021-47852 was published on 2026-01-21 and last updated on 2026-06-17.

References

Other CWE-276 (Incorrect Default Permissions) vulnerabilities

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CVE-2020-29492 — Critical (CVSS 10.0): Dell Wyse ThinOS 8.6 and prior versions contain an insecure default configuration vulnerability. A remote…
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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