CVE-2026-0257
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
95.2%
99.9th percentile
CISA KEV
Listed
Added 2026-05-29 · patch by 2026-06-01
Weakness / dates
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Published — · modified —
Timeline
- 2026-05-29 — Added to CISA KEV (actively exploited)
- 2026-06-01 — CISA patch-by deadline
Description
Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection.