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CVE-2026-0300

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal

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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Cloud NGFW

Vendor
Palo Alto Networks
Product
Cloud NGFW
Platforms
Unknown
Default status
unaffected
Cloud NGFW · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
AllunaffectedcustomUnavailableUnavailableNone listed

PAN-OS

Vendor
Palo Alto Networks
Product
PAN-OS
Platforms
Unknown
Default status
unaffected
PAN-OS · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
12.1.0affectedcustom12.1.7Unavailable
  1. 12.1.7 → unaffected
  2. 12.1.4-h5 → unaffected
11.2.0affectedcustom11.2.12Unavailable
  1. 11.2.12 → unaffected
  2. 11.2.10-h6 → unaffected
  3. 11.2.7-h13 → unaffected
  4. 11.2.4-h17 → unaffected
11.1.0affectedcustom11.1.15Unavailable
  1. 11.1.15 → unaffected
  2. 11.1.13-h5 → unaffected
  3. 11.1.10-h25 → unaffected
  4. 11.1.7-h6 → unaffected
  5. 11.1.6-h32 → unaffected
  6. 11.1.4-h33 → unaffected
10.2.0affectedcustom10.2.18-h6Unavailable
  1. 10.2.18-h6 → unaffected
  2. 10.2.16-h7 → unaffected
  3. 10.2.13-h21 → unaffected
  4. 10.2.10-h36 → unaffected
  5. 10.2.7-h34 → unaffected

Prisma Access

Vendor
Palo Alto Networks
Product
Prisma Access
Platforms
Unknown
Default status
unaffected
Prisma Access · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
AllunaffectedcustomUnavailableUnavailableNone listed