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CVE-2024-3393

76
FAUCET Score

CVE-2024-3393 is a Denial of Service vulnerability in Palo Alto Networks PAN-OS and Prisma Access, allowing unauthenticated attackers to reboot firewalls via a malicious DNS packet. With a CVSS score of 7.5 (High), this easily exploitable flaw requires no user interaction and can force affected devices into maintenance mode. This vulnerability is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV catalog, and has garnered significant community and media attention, despite no public exploit code being available.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.1.0, <= 11.1.1CPE matchmatch criteria
cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
>= 11.2.0, < 11.2.3CPE matchmatch criteria
cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
10.1.14CPE matchmatch criteria
cpe:2.3:o:paloaltonetworks:pan-os:10.1.14:-:*:*:*:*:*:*
10.1.14CPE matchmatch criteria
cpe:2.3:o:paloaltonetworks:pan-os:10.1.14:h2:*:*:*:*:*:*
10.1.14CPE matchmatch criteria
cpe:2.3:o:paloaltonetworks:pan-os:10.1.14:h4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:C/RE:M/U:Amber

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
LOW
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
26.64%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Dec 30, 2024
This CVE's current EPSS score of 0.2664 is in the 96th percentile among its peer group of 51,506 CVEs.

Social Chatter

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.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

paloaltovendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
security.paloaltonetworks.com / CVE-2024-3393
Vendor Advisory