Prisma Access Agent: Improper Certificate Validation Vulnerability
Summary
| CVE | CVE-2026-0248 |
|---|---|
| State | PUBLISHED |
| Assigner | palo_alto |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-13 19:16:58 UTC |
| Updated | 2026-05-14 16:21:23 UTC |
| Description | An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can capture sensitive device information. The Prisma Access Agent on macOS, Windows, Linux and iOS are not affected. |
Risk And Classification
Primary CVSS: v4.0 6.2 MEDIUM from [email protected]
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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:Y/R:A/V:D/RE:M/U:Amber
EPSS: 0.000060000 probability, percentile 0.003820000 (date 2026-05-25)
Problem Types: CWE-295 | CWE-295 CWE-295 Improper Certificate Validation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 6.2 | MEDIUM | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:U/C... |
| 4.0 | CNA | CVSS | 6.2 | MEDIUM | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:U/A... |
CVSS v4.0 Breakdown
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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:Y/R:A/V:D/RE:M/U:Amber
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Palo Alto Networks | Prisma Access Agent | affected 26.2.1 custom | Android, Chrome OS |
| CNA | Palo Alto Networks | Prisma Access Agent | unaffected All custom | iOS, Linux, macOS, Windows |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| security.paloaltonetworks.com/CVE-2026-0248 | [email protected] | security.paloaltonetworks.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue. (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-05-13T16:00:00.000Z | Initial publication. |
Solutions
CNA: Version Minor Version Suggested Solution Prisma Access Agent on Android 25.0 through 26.2 Upgrade to 26.2.1 or later. Prisma Access Agent Chrome OS 25.0 through 26.2 Upgrade to 26.2.1 or later. Prisma Access Agent on iOS No action needed Prisma Access Agent on Linux No action needed Prisma Access Agent on macOS No action needed Prisma Access Agent on Windows No action needed
Workarounds
CNA: No known workarounds exist for this issue.
Exploits
CNA: Palo Alto Networks is not aware of any malicious exploitation of this issue.