Vulnerability DatabaseCVE-2026-17544
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CVE-2026-17544
Published:July 30, 2026
Updated:August 06, 2026
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.
Affected Packages
https://github.com/php/php-src.git (GITHUB):
Affected version(s) >=php-8.4.0 <php-8.4.24
Fix Suggestion:
Update to version php-8.4.24
https://github.com/php/php-src.git (GITHUB):
Affected version(s) >=php-8.5.0 <php-8.5.9
Fix Suggestion:
Update to version php-8.5.9
Related Resources (1)
https://github.com/php/php-src/security/advisories/GHSA-x692-q9x7-8c3f
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CVSS v4
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.43