Medium 5.2Published May 13, 2026

CVE-2026-0244Prisma SD-WAN: Improper Certificate Validation Vulnerability

Updated under an hour ago (Oct 26, 2026, 7:00 PM ET)

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It affects Palo Alto Networks Prisma SD-WAN ION and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Palo Alto Networks Prisma SD-WAN ION

Exploited in the last 30 days

An improper certificate validation vulnerability in the Palo Alto Networks Prisma SD-WAN ION enables man-in-the-middle (MitM) attacker to impersonate the controller.

CVSS: 5.2 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness (CWE): CWE-295
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: palo_alto
NVD analysis: Analyzed
Record last updated: May 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Palo Alto Networks Prisma SD-WAN ION palo_alto_networks:prisma_sd_wan_ion (from the name)	from 6.5.0 before 6.5.3-b15; fixed at 6.5.3-b15; from 6.4.0 before 6.4.3-b8; fixed at 6.4.3-b8; from 6.3.0 before 6.3.6-b10; fixed at 6.3.6-b10; 6.1.0 not affected; 5.6.0 not affected	CNA record
paloaltonetworks prisma_sd-wan paloaltonetworks:prisma_sd-wan	from 6.3.1 before 6.3.6; from 6.4.1 before 6.4.3; from 6.5.1 before 6.5.3; 6.3.6; 6.3.6; 6.3.6; 6.4.3; 6.4.3; and 5 more ranges	NVD

References

References

https://security.paloaltonetworks.com/CVE-2026-0244	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.