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CVE-2026-17544

8.1 high exploit ×2 SSVC exploitation: none Analyzed
NVD · CVE.org

Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.

Fix

Public exploits 2

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.1 · phpNVD modified 2026-10-23 22:10

Affected (CPE criteria) 1

  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

References 1