High (8.6) in php php. EPSS 4.5% chance of exploitation in the next 30 days.
Integer overflow in the php_html_entities function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from the htmlspecialchars function.
Severity
CVSS 3.0
8.6 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS
4.5% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)