CVE-2021-3038

5.5 mediumEPSS 0.2%

Medium (5.5) in paloaltonetworks globalprotect. EPSS 0.2% chance of exploitation in the next 30 days.

A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect app on Windows systems allows a limited Windows user to send specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.8; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.4.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
CWEs: CWE-20, CWE-248
Published: 2021-04-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

paloaltonetworks:globalprotect

References

https://security.paloaltonetworks.com/CVE-2021-3038
https://security.paloaltonetworks.com/CVE-2021-3038

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