PHP Memory Corruption Vulnerability
PHP contains an out-of-memory corruption vulnerability that allows for unauthenticated remote code execution.
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- PHP
- Product
- PHP
- EPSS
- 1.00 (p100)
- CISA KEV
- added 26 Oct 2026, due 29 Oct 2026 (3d overdue)
- Exploitation
- observed in the wild
- Fix
- available
- Weakness
- CWE-416, CWE-755, CWE-824
Why it ranks 72 (Critical)
- CISA KEV listed, remediation due 2026-10-29
- EPSS 1.00 (high probability of exploitation)
- Covered by 36 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-109618 on this site · NVD · CVE.org · Vulnpedia · KEV
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