CVE-2021-3038: palo alto networks globalprotect app Improper Input Validation
Vulnerability summary
CVE-2021-3038 is a medium (CVSS 5.5) Improper Input Validation vulnerability in palo alto networks globalprotect app. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.6% of scored vulnerabilities.
Timeline
- 20-04-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Palo alto networks1 product
- globalprotect app≥ 5.1, < 5.1.8 | ≥ 5.2, < 5.2.4
Paloaltonetworks1 product
- globalprotect≥ 5.1.0, < 5.1.8 | ≥ 5.2.0, < 5.2.4
2 vendors · 2 products