CVE-2026-21273 — HIGH (8.7)

Vulnerability Description

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.

CVSS Score

8.7

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Adobe	Coldfusion	2023

Related Weaknesses (CWE)

CWE-20

References

https://helpx.adobe.com/security/products/coldfusion/apsb26-90.htmlVendor Advisory

FAQ

What is CVE-2026-21273?

CVE-2026-21273 is a vulnerability with a CVSS score of 8.7 (HIGH). 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 acce...

How severe is CVE-2026-21273?

CVE-2026-21273 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21273?

Check the references section above for vendor advisories and patch information. Affected products include: Adobe Coldfusion.