CVE-2021-3064
9.8
CRITICAL · CVSS 3.1 · EPSS 20.1% (pctl 97)
Patch early
EPSS 20.1% — above the 10% action threshold.
Description
A memory corruption vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to disrupt system processes and potentially execute arbitrary code with root privileges. The attacker must have network access to the GlobalProtect interface to exploit this issue. This issue impacts PAN-OS 8.1 versions earlier than PAN-OS 8.1.17. Prisma Access customers are not impacted by this issue.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 20.11% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-121 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-11-10 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| paloaltonetworks | pan-os |
References
→ the Explorer · watch your stack · NVD