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CVE-2026-0244

32
FAUCET Score

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.

First published: May 13, 2026Last modified: May 13, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.3.1, < 6.3.6CPE matchmatch criteria
cpe:2.3:a:paloaltonetworks:prisma_sd-wan:*:*:*:*:*:*:*:*
>= 6.4.1, < 6.4.3CPE matchmatch criteria
cpe:2.3:a:paloaltonetworks:prisma_sd-wan:*:*:*:*:*:*:*:*
>= 6.5.1, < 6.5.3CPE matchmatch criteria
cpe:2.3:a:paloaltonetworks:prisma_sd-wan:*:*:*:*:*:*:*:*
6.3.6CPE matchmatch criteria
cpe:2.3:a:paloaltonetworks:prisma_sd-wan:6.3.6:-:*:*:*:*:*:*
6.3.6CPE matchmatch criteria
cpe:2.3:a:paloaltonetworks:prisma_sd-wan:6.3.6:b6:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.2MEDIUM

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/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:D/RE:M/U:Amber

Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
UNREPORTED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 1st percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

paloaltovendor investigatingvia vendor_rss
View patch

Vendor Advisories (1)

paloaltopaloalto:security.paloaltonetworks.com/CVE-2026-0244MEDIUM

CVE-2026-0244 Prisma SD-WAN: Improper Certificate Validation Vulnerability (Severity: MEDIUM)

May 13, 2026

References

security.paloaltonetworks.com / CVE-2026-0244
Vendor Advisory