Act
active
CISA KEV: PHP2Shell RCE Flaws Under Active Exploitation (EPSS 1.00)
- Engineer — Act: CISA KEV listing plus EPSS 1.00 and a public GitHub PoC confirm imminent exploitation risk. Audit all deployments for PHP2Shell and apply the vendor patch immediately; treat any unpatched instance as potentially compromised.
- SOC/IR — Act: Active exploitation is confirmed and a public PoC is available, meaning intrusions may already be in progress. Hunt for signs of unauthenticated RCE against PHP-based services since early October 2026 and tune WAF/EDR rules to flag PHP2Shell-related web-shell activity.
- Leader — Plan: CISA KEV classification signals an organization-wide exposure check is warranted. Confirm with engineering whether PHP2Shell is in use, and if so, verify emergency patching is tracked as a priority-one item this week.
- Signals: CVE-2026-109618 — CISA KEV: listed, EPSS 1.00, public PoC on GitHub, reported by 2 collected sources
This entry was curated and judged by AI (Claude) with automated enrichment
(CISA KEV / EPSS / public PoC). Verify against the original source before
acting. Found a bad verdict?
Report it —
confirmed errors go to the corrections log.