CVE-2026-21273: Adobe ColdFusion

High severity, CVSS 8.7. EPSS: 0.9% chance of exploitation in the next 30 days.

is affected by an Improper Input Validation vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to gain unauthorized read and write access. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.

Affected products

• Adobe ColdFusion: version 2023 only; version 2025 only

Published 2026-08-11. Last modified 2026-08-28.