CVE-2025-66909

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-13.

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

2025-12-19 00:00Z10 MO AGO

Last updated

2025-12-19 15:23Z10 MO AGO

Reserved

2025-12-08

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-409Improper Handling of Highly Compressed Data (Data Amplification)Base

Data version

5.2

Document digest

8e4c3e3ea5ad615f9a9ec0cb6d28f14aa5b83c10b7c0b80ff2530582cc13d2ea

• github.comhttps://github.com/turms-im/turms
• github.comhttps://github.com/turms-im/turms/blob/develop/turms-ai-serving/src/main/java/ai/djl/opencv/ExtendedOpenCVImage.java#L37
• github.comhttps://github.com/Xzzz111/public_cve_report/blob/main/CVE-2025-66909_report.md