CVE-2024-3384

PAN-OS: Firewall Denial of Service (DoS) via Malformed NTLM Packets

HIGH

7.5

CVSS Score

Published: April 10, 2024 at 05:06 PM UTC

Updated: June 17, 2026 at 07:44 AM UTC

1 product affected across 1 vendorPAN-OS

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Severity

HIGH7.5

Exploit prediction

EPSS 0.9%

SSVC

No known exploit

Description

A vulnerability in Palo Alto Networks PAN-OS software enables a remote attacker to reboot PAN-OS firewalls when receiving Windows New Technology LAN Manager (NTLM) packets from Windows servers. Repeated attacks eventually cause the firewall to enter maintenance mode, which requires manual intervention to bring the firewall back online.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PAN-OS · Palo Alto Networks

95%

10.0.0 ≤ v < 10.0.128.1.0 ≤ v < 8.1.249.0.0 ≤ v < 9.0.179.1.0 ≤ v < 9.1.159.1.0 ≤ v < 9.1.15-h110.0.0 8.1.0 9.0.0 9.1.0 9.1.15

Affected range stops below 10.0.12, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 10.1.0 (unaffected)

Vendor states this is fixed in 10.2.0 (unaffected)

Vendor states this is fixed in 11.0.0 (unaffected)

Vendor states this is fixed in 11.1.0 (unaffected)

Affected range stops below 8.1.24, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.0.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.1.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.1.15-h1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://security.paloaltonetworks.com/CVE-2024-3384

References (1)

Vendor Advisory

Source: [email protected]

https://security.paloaltonetworks.com/CVE-2024-3384

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHpalo_alto

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-1286NVD-CWE-Other

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