Read the docs
TI-2024-02371 Aliases CVE-2024-2551GHSA-7h98-97f3-2x3x

PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted Packet

Priority MEDIUM 44CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

A null pointer dereference vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop a core system service on the firewall by sending a crafted packet through the data plane that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00483 41st percentileScored 2026-11-07
Fix Fixed Cloud NGFW (Palo Alto Networks): AllPAN-OS (Palo Alto Networks): 11.2.0, 11.1.0, 11.0.5 +2+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Palo Alto NetworksCloud NGFW—AllPatch availableCNA
Palo Alto NetworksPAN-OS11.0.0 to before 11.0.5; 10.2.0 to before 10.2.4-h6; 10.1.0 to before 10.1.1411.2.0, 11.1.0, 11.0.5, 10.2.4-h6, 10.1.14Patch availableCNA
Palo Alto NetworksPrisma Access—AllPatch availableCNA
  • Cloud NGFW VendorPalo Alto Networks Affected — Fixed in All Patch available CNA
  • PAN-OS VendorPalo Alto Networks Affected 11.0.0 to before 11.0.5; 10.2.0 to before 10.2.4-h6; 10.1.0 to before 10.1.14 Fixed in 11.2.0, 11.1.0, 11.0.5, 10.2.4-h6, 10.1.14 Patch available CNA
  • Prisma Access VendorPalo Alto Networks Affected — Fixed in All Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*10.1.0 to before 10.1.14; 10.2.0 to before 10.2.4; 11.0.0 to before 11.0.5VulnerableCyberArk Software, a Palo Alto Networks Company
cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:-:*:*:*:*:*:*10.2.4VulnerableCyberArk Software, a Palo Alto Networks Company
cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h2:*:*:*:*:*:*10.2.4 h2VulnerableCyberArk Software, a Palo Alto Networks Company
cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h3:*:*:*:*:*:*10.2.4 h3VulnerableCyberArk Software, a Palo Alto Networks Company
cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h4:*:*:*:*:*:*10.2.4 h4VulnerableCyberArk Software, a Palo Alto Networks Company

Remediation

  • Fix · CNA Cloud NGFW (Palo Alto Networks) Fixed in All
  • Fix · CNA PAN-OS (Palo Alto Networks) Fixed in 11.2.0, 11.1.0, 11.0.5, 10.2.4-h6, 10.1.14
  • Fix · CNA Prisma Access (Palo Alto Networks) Fixed in All

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-2551
  2. 2026-10-03 Alias added: GHSA-7h98-97f3-2x3x

References

Advisory 1

  • TI-2024-08782 Expedition: Unauthenticated OS Command Injection Vulnerability Leads to Firewall Credential Disclosure KEVCVSS 4.0CRITICAL 9.9
  • TI-2024-03172 PAN-OS: Arbitrary File Creation Leads to OS Command Injection Vulnerability in GlobalProtect KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-01936 PAN-OS: Authentication Bypass in SAML Authentication KEVCVSS 3.1CRITICAL 10.0
  • TI-2017-11675 Palo Alto Networks PAN-OS before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.14, and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-00239 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal KEVCVSS 4.0CRITICAL 9.3
  • TI-2024-08784 Expedition: SQL Injection Leads to Firewall Admin Credential Disclosure KEVCVSS 4.0CRITICAL 9.2
See all 367 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences