CVE-2026-0263 PAN-OS: Remote Code Execution (RCE) in IKEv2 Processing (Severity: HIGH)

highCVE-2026-0263

CSIRTS triage

vendor: Palo Alto Networks product: PAN-OS Remote code execution

What: A remote code execution vulnerability exists in IKEv2 processing.
Who is affected: Deployments of PAN-OS are affected.
Urgency: Remediation is critical due to the high severity and potential for remote code execution.
Action: Update PAN-OS to the latest version to address the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Palo Alto Networks Security Advisories (INTL · vendor-psirt · site)
Severity: high
Published: 2026-05-28
Exploitation: Not in CISA KEV at last sync

Original advisory: https://security.paloaltonetworks.com/CVE-2026-0263

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-02630.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-0263	coverage & exploitation status	NVD · CVE.org

Recent advisories for PAN-OS

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[NEW] [medium] Palo Alto Networks PAN-OS: Vulnerability enables information disclosurecert-bund · 2026-08-13
unknownCVE-2026-0301: An information disclosure vulnerability in the URL Filtering feature of Palo Alto Networks PAN-…nvd · 2026-08-13
lowCVE-2026-0301 PAN-OS: Information Disclosure Vulnerability in URL Filtering (Severity: LOW)paloalto · 2026-08-12
unknownNCSC-2026-0227 [1.00] [M/H] Vulnerabilities fixed in Palo Alto Networks PAN-OSncsc-nl · 2026-07-13
high[NEW] [high] Palo Alto Networks PAN-OS: Multiple vulnerabilitiescert-bund · 2026-07-10
highCVE-2026-0287: Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unau…nvd · 2026-07-09