CVE-2026-21273

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 41.3% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-28.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-11 16:30Z24 DAYS AGO

Last updated

2026-08-27 22:34Z7 DAYS AGO

Reserved

2025-12-12

Assigning CNA

adobe

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

dcda2946c9684aea3428c66fbf6c4c01001063624b40d16ee5b2c55160530ee9

• helpx.adobe.comhttps://helpx.adobe.com/security/products/coldfusion/apsb26-90.htmlvendor-advisory