GENERAL/ MISCELLANEOUS CIRCULARS

PHP2Shell Vulnerability Advisory for Indian Ecosystem by Nasscom-DSCI

By TEAM CIRCULAR EXPRESS • 21 Oct 2026
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• Update PHP and restart web servers immediately to apply emergency fixes for critical flaws CVE-2026-109618 and CVE-2026-109619.
• Take unpatched systems offline if updates are not immediately possible.
• Review system logs starting from 17th October for signs of compromise.
• Follow CERT-In advisory CIVN-2026-0510, implement WAF rules, and report any security breaches to CERT-In to protect critical data.
Purpose of issuance
Advisory on critical PHP2Shell vulnerability remediation
Most Important Details
PHP released emergency fixes for two critical flaws allowing unauthorized code execution. Organizations must update PHP, restart servers, and check logs from 17th October. CERT-In has issued vulnerability note CIVN-2026-0510.
Issuing Authority
Data Security Council of India (DSCI)
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