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CVE-2026-0300

קריטית 9.8 מנוצלת בשטח (KEV)

ניצול פעיל מאומת — קטלוג CISA KEV

שם
Palo Alto Networks PAN-OS Out-of-bounds Write Vulnerability
נוסף לקטלוג
יעד טיפול (פדרלי)
פעולה נדרשת
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Until the vendor releases an official fix, the following workaround should be implemented: - Restrict User-ID Authentication Portal access to only trusted zones. - Disable User-ID Authentication Portal if not required. 5/13/2026: Palo Alto has released a variety of patches. If these are relevant to your environment, please apply the designated patch.

תיאור (מקור, אנגלית)

A buffer overflow vulnerability in the User-ID™ Authentication Portal (aka Captive Portal) service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. The risk of this issue is greatly reduced if you secure access to the User-ID™ Authentication Portal per the best practice guidelines https://knowledgebase.paloaltonetworks.com/KCSArticleDetail by restricting access to only trusted internal IP addresses. Prisma Access, Cloud NGFW and Panorama appliances are not impacted by this vulnerability.

מדדים

CVSS 3.1
9.8 (CRITICAL) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0
9.3 (CRITICAL) מקור הציון: CNA CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:A/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:Y/R:U/V:C/RE:M/U:Red
EPSS — סבירות ניצול
32% (אחוזון 100) נכון ל-1/8/2026
CWE
CWE-787

מוצרים מושפעים

paloaltonetworks: pan-os; paloaltonetworks: pa-1410; paloaltonetworks: pa-1420; paloaltonetworks: pa-3410; paloaltonetworks: pa-3420; paloaltonetworks: pa-3430; paloaltonetworks: pa-3440; paloaltonetworks: pa-410; paloaltonetworks: pa-410r; paloaltonetworks: pa-410r-5g; paloaltonetworks: pa-415; paloaltonetworks: pa-415-5g; paloaltonetworks: pa-440; paloaltonetworks: pa-445; paloaltonetworks: pa-450

קישורים