First published Oct 26, 2026, 11:31:15 PM UTC · Last updated Oct 26, 2026, 11:31:15 PM UTC

CVE-2026-109618: PHP Memory Corruption Vulnerability

Reported by CISA Known Exploited Vulnerabilities

The source describes a PHP memory corruption vulnerability that allows unauthenticated remote code execution and calls for mitigations under vendor instructions. It also directs stakeholders to assess internet exposure and follow applicable CISA guidance.

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Why it matters

The described vulnerability permits unauthenticated remote code execution, and the source calls for mitigation or discontinuing the product if mitigations are unavailable.

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 6/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 3/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

CISA Known Exploited Vulnerabilities CVE-2026-109618: PHP Memory Corruption Vulnerability

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