r2qa/CVE-2026-17544

PoC

CVE-2026-17544: PHP bcmath OOB write → universal memory-only RCE & disable_functions/open_basedir bypass. Offset-free runtime resolver. Verified on PHP 8.4.x / 8.5.x.

view exploit source poc_in_githubauthor r2qapublished 2026-08-15catalog poc_in_github
01

exploited CVEs (1)

Known CVEs related to this entry.

IDseverity exploitable
CVE-2026-17544UScritical9.8Exploit
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.
scry

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