Buffer overflow in Palo Alto Networks Pan-Os
CVE-2021-3064
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.201 (97.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.191 · newest: 0.201 · change: +0.010
Affected products
- Palo Alto Networks Pan-Os — versions 9.0.*, 9.1.*, 10.0.*
- Palo Alto Networks Prisma Access — versions 2.2 all, 2.1 all
- Paloaltonetworks Pan-Os
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.paloaltonetworks.com/CVE-2021-3064 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-3064?
- CVE-2021-3064 is a critical-severity vulnerability in Palo Alto Networks Pan-Os, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-11-10.
- How severe is CVE-2021-3064?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-3064 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.