CVE-2026-0300
Exploited in the Wild
✓ Confirmed 0-Day
Triaged: May 7, 2026
7 articles
EPSS Score
Source: FIRST.org · 2026-05-24
4.35%
probability
This CVE has a 4.35% probability
of being exploited in the next 30 days.
0%
Top 89.1th percentile of all CVEs
100%
CVSS score unavailable
Neither CIRCL nor NVD returned a CVSS score for this CVE.
View on VulnerabilityLookup ↗
CISA Adds One Known Exploited Vulnerability to Catalog
CISA-Advisories
May 06, 2026
Siemens RUGGEDCOM APE1808 Devices
CISA-Advisories
May 19, 2026
A critical Palo Alto PAN-OS zero-day is being exploited in the wild
CyberScoop
May 06, 2026
Palo Alto PAN-OS Flaw Under Active Exploitation Enables Remote Code Execution
TheHackerNews
May 06, 2026
Palo Alto Networks warns of firewall RCE zero-day exploited in attacks
BleepingComputer
May 06, 2026
Palo Alto Networks to Patch Zero-Day Exploited to Hack Firewalls
SecurityWeek
May 06, 2026
PAN-OS RCE Exploit Under Active Use Enabling Root Access and Espionage
TheHackerNews
May 07, 2026
Signal Intelligence
Confidence
85%
EPSS
4.35%
Mentions
7
Last Seen
May 19, 2026
CNA Information
Analyst Note
CVE-2026-0300 is explicitly named as a zero-day being exploited in the wild across multiple authoritative sources (CyberScoop, TheHackerNews, BleepingComputer, SecurityWeek). CISA KEV catalog addition confirms active exploitation. Palo Alto Networks' disclosure of a zero-day being patched aligns with active attacks.
Triage Info
Decided atMay 07, 2026