CVE-2024-2551
📛 CVE Title
PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted Packet
Description
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.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- palo_alto
- CVSS severity
- HIGH
- CVSS score
- 8.7 / 10
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:C/RE:M/U:Amber- Effective score
- 8.7 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-476 - Reserved
- 2024-03-15
- Published
- 2024-11-14 09:36 UTC
- Last updated
- 2024-11-19 15:01 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2024/2xxx/CVE-2024-2551.json
- Linked Threat
- CVE-2024-2551 — PAN-OS: Firewall Denial of Service (DoS) Using a Specially Crafted Packet
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2024-11-14 10:15:04 UTC
- NVD last modified
- 2025-01-24 16:03:41 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: nvd@nist.gov
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 3.6 / 10
- EPSS score
- 0.0031 (probability of exploitation in next 30 days)
- EPSS percentile
- 54.26% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 01:30 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2024-27500 - Assigner
- palo_alto
- Published
- Nov 14, 2024, 9:36:09 AM
- Updated
- Nov 19, 2024, 3:01:40 PM
- EUVD base score (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:N/AU:N/R:U/V:C/RE:M/U:Amber - EUVD-reported EPSS
- 0.3100
- Vendors
- Palo Alto Networks
- Products
-
PAN-OS (11.0.0 <11.0.5)PAN-OS (10.1.0 <10.1.14)PAN-OS (10.2.0 <10.2.4-h6)
- Aliases
-
GHSA-7h98-97f3-2x3x
ENISA description: 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.
EUVD references (1)
Affected products (3)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Palo Alto Networks | Cloud NGFW |
All (unaffected)
|
— |
| Palo Alto Networks | PAN-OS |
11.2.0 (unaffected),
11.1.0 (unaffected),
11.0.0 (affected),
10.2.0 (affected),
10.1.0 (affected)
|
— |
| Palo Alto Networks | Prisma Access |
All (unaffected)
|
— |
Affected products — CPE 2.3 (5) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:-:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h2:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h3:*:*:*:*:*:*cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h4:*:*:*:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
- https://security.paloaltonetworks.com/CVE-2024-2551 vendor-advisory
Web references (5)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- http://cwe.mitre.org/data/definitions/476.html rapid7:cwe.mitre.org
- https://attackerkb.com/topics/CVE-2024-2551 rapid7:attackerkb.com
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-27500 rapid7:euvd.enisa.europa.eu
- https://security.paloaltonetworks.com/CVE-2024-2551 rapid7:security.paloaltonetworks.com
- https://www.cve.org/CVERecord?id=CVE-2024-2551 rapid7:www.cve.org
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://security.paloaltonetworks.com/CVE-2024-2551 psirt@paloaltonetworks.com Vendor Advisory
Indicators (1)
IOCs linked to the auto-promoted Threat row.
| Type | Value | VirusTotal | Attached |
|---|---|---|---|
| cve |
CVE-2024-2551
|
no local data | 2026-05-14 09:34 UTC |
Remediations (8)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:attack.mitre.org
This mitigation can be implemented through the following measures: Regular Operating System Updates Implementation: Apply the latest Windows security updates monthly using WSUS (Windows Server Update Services) or a similar patch management solution. Configure systems to check for updates automatically and schedule reboots during maintenance ...
2026-05-17 10:55 UTC -
web:blog.toolslib.net
Microsoft's December Patch Tuesday 2025 delivers Windows 11 improvements, AI upgrades, an essential Servicing Stack update, and a silent fix for the long-exploited LNK shortcut flaw. Learn what's new and what to update safely.
2026-05-17 10:55 UTC -
web:cybersecuritynews.com
Microsoft released an out-of-band hotpatch update on March 13, 2026, addressing serious security vulnerabilities in Windows 11 versions 24H2 and 25H2.
2026-05-17 10:55 UTC -
web:krebsonsecurity.com
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited vulnerabilities ...
2026-05-17 10:55 UTC -
web:securityboulevard.com
Microsoft addressed over 1,100 CVEs as part of Patch Tuesday releases in 2025, including 40 zero-day vulnerabilities.Key takeaways:Microsoft's 2025 Patch Tuesday releases addressed 1,130 CVEs . This is the second year in a row where the CVE count was over 1,000. Elevation of Privilege vulnerabilities accounted for 38.3% of all Patch Tuesday vulnerabilities in 2025, followed by Remote Code ...
2026-05-17 10:55 UTC -
web:support.microsoft.com
Updates for Windows 11, version 24H2 Windows 11 is a service, which means it gets better through periodic feature updates. We take a phased and measured approach to rolling out every feature update. That means you'll receive Windows 11, version 24H2 when data shows that your device is ready and that you will have a great update experience. On the left side of this page, you'll find a list ...
2026-05-17 10:55 UTC -
web:www.lansweeper.com
Which vulnerabilities, issues, and other things did Microsoft update? Discover what's new using Lansweeper's Patch Tuesday October 2025 summary.
2026-05-17 10:55 UTC -
web:www.rapid7.com
Microsoft is publishing 66 new vulnerabilities today, which is far fewer than we've come to expect in recent months. However, the lone zero-day vulnerability this month demands attention.
2026-05-17 10:55 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2024-2551.json.
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"vendor": "Palo Alto Networks",
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"version": "11.2.0"
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{
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"subConfidentialityImpact": "NONE",
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