Skip to content
Patcharo
All vulnerabilities
CVE-2024-3382

PAN-OS: Firewall Denial of Service (DoS) via a Burst of Crafted Packets

Severity
High7.5CVSS 3.1, High
Known exploited
Not listed
Exploit prediction
0.93%
Published
10 Apr 2024Updated 17 Jun 2026 · Last verified 29 Sept 2026

Known remediation

Fixed releases per branch, as the vendor states them. Patcharo never infers a fix.

Workaround / Vendor remediation

Workaround · PAN-OS

You can mitigate this issue by disabling decryption on your firewalls. To temporarily disable SSL Decryption, refer to the administrator’s guide for your PAN-OS software (such as PAN-OS 11.1: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-admin/decryption/temporarily-disable-ssl-decryption) . Additionally, to ensure that decryption remains disabled after a reboot, configure a policy-based decryption exclusion that excludes all traffic from being decrypted ( https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-admin/decryption/decryption-exclusions/create-a-policy-based-decryption-exclusion) .

Vendor remediation · PAN-OS

This issue is fixed in PAN-OS 10.2.7-h3, PAN-OS 11.0.4, PAN-OS 11.1.2, and all later PAN-OS versions.

Description

Title, description and vendor guidance are quoted from the source records.

A memory leak exists in Palo Alto Networks PAN-OS software that enables an attacker to send a burst of crafted packets through the firewall that eventually prevents the firewall from processing traffic. This issue applies only to PA-5400 Series devices that are running PAN-OS software with the SSL Forward Proxy feature enabled.

Weakness: CWE-770, CWE-401

Known exploited

Not listed in CISA KEV as of the last check.

Exploit prediction

0.93% probability of exploitation in the next 30 days (percentile 59%).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the source states, per branch

Versions matched by Patcharo

Palo Alto Networks PAN-OSSource: Palo Alto Networks (CVE record)

BranchAffectedFixed in
11.1
>= 11.1.0, < 11.1.2
11.1.2
11.0
>= 11.0.0, < 11.0.4
11.0.4
10.2
>= 10.2.0, < 10.2.7-h3
10.2.7-h3

Versions not listed are stated unaffected by the vendor.

References

Provenance

Every fact on this page comes from the sources below. Nothing is written by an AI.

Palo Alto Networks (CVE record)
Palo Alto Networks (CVE record) · 29 Sept 2026 at 06:17 UTC · Parser patcharo-cve5/1.1.0
NVD
NVD · 27 Sept 2026 at 23:44 UTC · Parser patcharo-nvd/1.0.0
FIRST EPSS
FIRST EPSS · 30 Sept 2026 at 00:17 UTC · Parser patcharo-epss/1.0.0

Last verified: 29 Sept 2026 at 06:17 UTC