CVE-2026-17544

Public on 2026-07-30
Modified on 2026-08-02
Description
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.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
8.6
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core php Not Affected
Amazon Linux 2 - Php8.2 Extra php Not Affected
Amazon Linux 2023 php8.1 Not Affected
Amazon Linux 2023 php8.2 Not Affected
Amazon Linux 2023 php8.3 Not Affected
Amazon Linux 2023 php8.4 Pending Fix
Amazon Linux 2023 php8.5 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H