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CVE-2024-3393

HIGHCVSS 8.7/10Actively ExploitedEPSS 26.64%

Last modified

CVE-2024-3393 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 26.64% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

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

CVSS 4.0
8.7/10

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

EPSS Probability
26.64%

97.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersions
PaloaltonetworksPan-Os>= 11.1.0, <= 11.1.1
PaloaltonetworksPan-Os>= 11.2.0, < 11.2.3
PaloaltonetworksPan-Os10.1.14
PaloaltonetworksPan-Os10.2.8
PaloaltonetworksPan-Os10.2.9
PaloaltonetworksPan-Os10.2.10
PaloaltonetworksPan-Os10.2.11
PaloaltonetworksPan-Os10.2.12
PaloaltonetworksPan-Os10.2.13
PaloaltonetworksPan-Os11.1.2
PaloaltonetworksPan-Os11.1.3
PaloaltonetworksPan-Os11.1.4
PaloaltonetworksPrisma AccessAll versions

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-3393?
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.
How severe is CVE-2024-3393?
CVE-2024-3393 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 26.64% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2024-3393?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-3393?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST