{"uuid": "0cc7a63e-d4b1-4e12-a527-005dc935b802", "vulnerability": {"vulnId": "CVE-2026-0300", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "0cc7a63e-d4b1-4e12-a527-005dc935b802"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2026-05-06T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2026-05-06T00:00:00Z", "recorded_at": "2026-05-06T19:00:01Z", "first_seen_at": "2026-05-06T00:00:00Z"}, "scope": {"notes": "KEV entry: Palo Alto Networks PAN-OS Out-of-bounds Write Vulnerability | Affected: Palo Alto Networks / PAN-OS | Description: Palo Alto Networks PAN-OS contains an out-of-bounds write vulnerability in the User-ID Authentication Portal (aka Captive Portal) service that can allow an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.    Until the vendor releases an official fix, the following workaround should be implemented:  - Restrict User-ID Authentication Portal access to only trusted zones.  - Disable User-ID Authentication Portal if not required. | Due date: 2026-05-09 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://security.paloaltonetworks.com/CVE-2026-0300 ; https://nvd.nist.gov/vuln/detail/CVE-2026-0300"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-787"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "PAN-OS", "due_date": "2026-05-09", "date_added": "2026-05-06", "vendorProject": "Palo Alto Networks", "vulnerabilityName": "Palo Alto Networks PAN-OS Out-of-bounds Write Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2026-0300", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-0300"}]}