CVE-2026-0257

UNKNOWNKnown Exploited

CISA Known Exploited Vulnerability

https://security.paloaltonetworks.com/CVE-2026-0257 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0257

Remediation deadline: June 1, 2026

Ransomware use: Known

Description

Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection.

Timeline

Published:May 29th, 2026 12:00 AM

Last modified:May 29th, 2026 12:00 AM

Added to KEV:May 29th, 2026

CVSS Scoring

No CVSS v3 score available

Affected Software

From NVD CPE configuration data

Vendors

Palo Alto Networks

Products

PAN-OS

Weaknesses (CWE)

CWE-565

References & Reports

Advisories, patches, and third-party reports

No references available.

Source: CISA KEV + NVD · Data may lag official sources by up to one minute