CVE-2021-3063 is an improper handling of exceptional conditions vulnerability in Palo Alto Networks GlobalProtect portal and gateway interfaces. It allows an unauthenticated network-based attacker to send crafted traffic, causing a denial of service by restarting the device and placing it into maintenance mode. This vulnerability affects various PAN-OS 8.1, 9.0, 9.1, 10.0, and 10.1 versions. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a significant risk. Its attack vector is network-based, requires low attack complexity, and has no user interaction, leading to high availability impact. There is no impact on confidentiality or integrity. Currently, there is no evidence of active exploitation, nor is there publicly available exploit code in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, which is typical for the majority of CVEs.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 8.1.0, < 8.1.21CPE matchmatch criteria | cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* | ||
>= 9.0.0, <= 9.0.14CPE matchmatch criteria | cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* | ||
>= 9.1.0, <= 9.1.11CPE matchmatch criteria | cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* | ||
>= 10.0.0, <= 10.0.8CPE matchmatch criteria | cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* | ||
>= 10.1.0, < 10.1.3CPE matchmatch criteria | cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.