Out-of-bounds Write Affecting php package, versions <0:8.5.9-1.hum1


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.43% (36th percentile)

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  • Snyk IDSNYK-RHEL10-PHP-18562673
  • published6 Aug 2026
  • disclosed30 Jul 2026

Introduced: 30 Jul 2026

CVE-2026-17544  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:10 php to version 0:8.5.9-1.hum1 or higher.
This issue was patched in RHSA-2026:47200.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php package and not the php package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1