PAN-OS: Buffer Overflow Vulnerability via XML Processing (Palo Alto Networks Cloud NGFW)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.67 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- palo_alto
- NVD status
- Awaiting Analysis
Description
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls. The security risk posed by this issue is minimized when the management interface is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . Panorama is impacted by this vulnerability.
Weaknesses (CWE)
- CWE-787 — Out-of-bounds Write
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 7.2 | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Red | palo_alto |
| CVSS 4.0 | MEDIUM 6.6 | 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/E:U/AU:N/R:U/V:D/RE:M/U:Amber | palo_alto |
| CVSS 4.0 | MEDIUM 4.8 | CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber | palo_alto |
| CVSS 4.0 | MEDIUM 5.2 | CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber | palo_alto |
| CVSS 4.0 | HIGH 7.2 | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/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:N/R:U/V:D/RE:M/U:Red | NVD · psirt@paloaltonetworks.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-75253
- GCVE · GCVE-0-2026-0310
CERT-FR advisories
- CERTFR-2026-AVI-1156 — Multiples vulnérabilités dans les produits Palo Alto Networks · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Palo Alto Networks · Cloud NGFW | affected All |
| Palo Alto Networks · PAN-OS | affected 12.2.0 < 12.2.3 ; affected 12.1.0 < 12.1.4-h10 ; affected 11.2.0 < 11.2.4-h21 ; affected 11.1.0 < 11.1.4-h36 ; affected 10.2.0 < 10.2.7-h37 |
| Palo Alto Networks · Prisma Access | unaffected 12.1.0 < 12.1.4-h10 ; affected 11.2.0 < 11.2.4-h21 ; affected 10.2.0 < 10.2.7-h37 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |