How severe is CVE-2025-66909?

CVE-2025-66909 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-66909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66909?

CVE-2025-66909 affects Turms-im Turms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66909?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-66909 have an EU (EUVD) identifier?

Yes. CVE-2025-66909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204541.

When was CVE-2025-66909 published?

CVE-2025-66909 was published on 2025-12-19 and last updated on 2026-06-17.

CVE-2025-66909

CVE-2025-66909 is a high-severity vulnerability in Turms-im Turms with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-409.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-204541
Weakness: CWE-409
Affected product: Turms-im Turms
Published: 2025-12-19
Last modified: 2026-06-17

Description

Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an image decompression bomb denial of service vulnerability. The ExtendedOpenCVImage class in ai/djl/opencv/ExtendedOpenCVImage.java loads images using OpenCV's imread() function without validating dimensions or pixel count before decompression. An attacker can upload a specially crafted compressed image file (e.g., PNG) that is small when compressed but expands to gigabytes of memory when loaded. This causes immediate memory exhaustion, OutOfMemoryError, and service crash. No authentication is required if the OCR service is publicly accessible. Multiple requests can completely deny service availability.

Frequently asked questions

What is CVE-2025-66909?: Turms AI-Serving module v0.10.0-SNAPSHOT and earlier contains an image decompression bomb denial of service vulnerability. The ExtendedOpenCVImage class in ai/djl/opencv/ExtendedOpenCVImage.java loads images using OpenCV's imread() function without validating dimensions or pixel count before decompression. An attacker can upload a specially crafted compressed image file (e.g., PNG) that is small when compressed but expands to gigabytes of memory when loaded. This causes immediate memory exhaustion, OutOfMemoryError, and service crash. No authentication is required if the OCR service is publicly accessible. Multiple requests can completely deny service availability.
How severe is CVE-2025-66909?: CVE-2025-66909 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-66909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66909?: CVE-2025-66909 affects Turms-im Turms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-66909 have an EU (EUVD) identifier?: Yes. CVE-2025-66909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-204541.
When was CVE-2025-66909 published?: CVE-2025-66909 was published on 2025-12-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:turms-im:turms:0.10.0-snapshot:*:*:*:*:*:*:*

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