8.7

CVE-2024-3393: Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability

CVSS: 8.7v4.0HighKEVAnalyzed
Published 27-12-2024Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2024-3393 is a high (CVSS 8.7) vulnerability in Palo Alto Networks PAN-OS. It is known to be exploited: CISA lists it, first on 30-12-2024. EPSS estimates a 29.12% chance of exploitation in the next 30 days, higher than 98.1% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
29.12%
0%100%
High · +0.71 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-12-2024
    PublishedVulnerability first disclosed.
  2. 30-12-2024
    Added to CISA KEVPalo Alto Networks PAN-OS Malicious DNS Packet Vulnerability
  3. 20-01-2025
    CISA remediation dueApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

29.12%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

+0.71 pp

From 28.41% on 21-09-2026

21-09-202621-10-2026
EPSS score
29.12%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
30-12-2024
Federal due date
20-01-2025

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. security.paloaltonetworks.com/CVE-2024-3393 nvd.nist.gov/vuln/detail/CVE-2024-3393

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Paloaltonetworks2 products
  • pan-osEOL≥ 11.1.0, ≤ 11.1.1 | ≥ 11.2.0, < 11.2.3 | 10.1.14 | 10.1.14:h2 | 10.1.14:h4 | 10.1.14:h6 | 10.2.8 | 10.2.8:h10 | 10.2.8:h13 | 10.2.8:h15 | 10.2.8:h18 | 10.2.8:h3 | 10.2.8:h4 | 10.2.9 | 10.2.9:h1 | 10.2.9:h11 | 10.2.9:h14 | 10.2.9:h16 | 10.2.9:h18 | 10.2.9:h9 | 10.2.10 | 10.2.10:h10 | 10.2.10:h2 | 10.2.10:h3 | 10.2.10:h4 | 10.2.10:h5 | 10.2.10:h7 | 10.2.10:h9 | 10.2.11 | 10.2.11:h1 | 10.2.11:h2 | 10.2.11:h3 | 10.2.11:h4 | 10.2.11:h6 | 10.2.11:h9 | 10.2.12 | 10.2.12:h1 | 10.2.12:h2 | 10.2.12:h3 | 10.2.13 | 10.2.13:h1 | 11.1.2 | 11.1.2:h1 | 11.1.2:h12 | 11.1.2:h14 | 11.1.2:h15 | 11.1.2:h3 | 11.1.2:h4 | 11.1.2:h9 | 11.1.3 | 11.1.3:h1 | 11.1.3:h10 | 11.1.3:h11 | 11.1.3:h2 | 11.1.3:h4 | 11.1.3:h6 | 11.1.4 | 11.1.4:h1 | 11.1.4:h4
  • prisma_accessna
Palo alto networks1 product
  • pan-os≥ 11.2.0, < 11.2.3 | ≥ 11.1.0, < 11.1.2-h16 | ≥ 10.2.8, < 10.2.8-h19 | ≥ 10.1.14, < 10.1.14-h8

2 vendors · 3 products

References

2 links