Skip to content
VulniPulse
Sign in
Advisory severityCritical9.2Vendor: HighPalo Alto Networks

Critical [CVE-2026-0310] PAN-OS: Buffer Overflow Vulnerability via XML Processing

This critical-severity Palo Alto Networks advisory covers CVE-2026-0310 affecting Cloud NGFW, PAN-OS, Prisma Access.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-0310 Source published

VulniPulse record published Record updated

CVE-2026-0310
Affected products & platforms
Palo Alto NetworksPAN-OSFirewallPrisma AccessCloud NGFWPAN-OS / Panorama
Open source advisory

Get an email when Palo Alto Networks publishes the next one.

VulniPulse checks Palo Alto Networks's security advisories around the clock and emails you new ones with the severity, the fixed version and the vendor's link. First month free, then US$15/month; we email you before the first charge.

Start your free month

Summary

CVE-2026-0310 PAN-OS: Buffer Overflow Vulnerability via XML Processing

Affected products named by the advisory: Cloud NGFW; Prisma Access.

Affected versions
  • Cloud NGFW All
  • PAN-OS < 12.2.3
  • PAN-OS < 12.1.4-h10
  • PAN-OS < 11.2.4-h21
  • PAN-OS < 11.1.4-h36
  • PAN-OS < 10.2.7-h37

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Fixed versions
  • PAN-OS >= 12.2.3
  • PAN-OS >= 12.1.10
  • PAN-OS >= 12.1.7-h5
  • PAN-OS >= 12.1.4-h10
  • PAN-OS >= 11.2.13-h2
  • PAN-OS >= 11.2.10-h14
  • PAN-OS >= 11.2.7-h20
  • PAN-OS >= 11.2.4-h21
  • PAN-OS >= 11.1.16-h2
  • PAN-OS >= 11.1.13-h12
  • PAN-OS >= 11.1.10-h33
  • PAN-OS >= 11.1.7-h10
  • PAN-OS >= 11.1.6-h38
  • PAN-OS >= 11.1.4-h36
  • PAN-OS >= 10.2.18-h10
  • PAN-OS >= 10.2.16-h10
  • PAN-OS >= 10.2.13-h24
  • PAN-OS >= 10.2.10-h40
  • PAN-OS >= 10.2.7-h37
  • Prisma Access >= 12.1.7-h5

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • VersionMinor VersionSuggested SolutionCloud NGFW Customers who prefer to upgrade can work with Palo Alto Networks support to schedule an on-demand software upgrade.
  • PAN-OS 12.2 12.2.0 through 12.2.2 Upgrade to 12.2.3 or later.
  • PAN-OS 12.1 12.1.8 through 12.1.9 Upgrade to 12.1.10 or later. 12.1.5 through 12.1.7-h* Upgrade to 12.1.7-h5 or 12.1.10 or later. 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h10 or 12.1.10 or later.
Workaround status
  • No known workarounds exist for this issue.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

More Palo Alto Networks advisories

All Palo Alto Networks advisories

Android app · Google Play

Monitor future Palo Alto Networks CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Get CVE alertsSee app features

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.

Sign in to join the discussion.