How severe is CVE-2025-63914?

CVE-2025-63914 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-63914 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63914?

CVE-2025-63914 affects Cinnamon Kotaemon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63914?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-63914 have an EU (EUVD) identifier?

Yes. CVE-2025-63914 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198989.

When was CVE-2025-63914 published?

CVE-2025-63914 was published on 2025-11-24 and last updated on 2026-06-17.

CVE-2025-63914

CVE-2025-63914 is a medium-severity vulnerability in Cinnamon Kotaemon with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198989
Weakness: CWE-409
Affected product: Cinnamon Kotaemon
Published: 2025-11-24
Last modified: 2026-06-17

Description

An issue was discovered in Cinnamon kotaemon 0.11.0. The _may_extract_zip function in the \libs\ktem\ktem\index\file\ui.py file does not check the contents of uploaded ZIP files. Although the contents are extracted into a temporary folder that is cleared before each extraction, successfully uploading a ZIP bomb could still cause the server to consume excessive resources during decompression. Moreover, if no further files are uploaded afterward, the extracted data could occupy disk space and potentially render the system unavailable. Anyone with permission to upload files can carry out this attack.

Frequently asked questions

What is CVE-2025-63914?: An issue was discovered in Cinnamon kotaemon 0.11.0. The _may_extract_zip function in the \libs\ktem\ktem\index\file\ui.py file does not check the contents of uploaded ZIP files. Although the contents are extracted into a temporary folder that is cleared before each extraction, successfully uploading a ZIP bomb could still cause the server to consume excessive resources during decompression. Moreover, if no further files are uploaded afterward, the extracted data could occupy disk space and potentially render the system unavailable. Anyone with permission to upload files can carry out this attack.
How severe is CVE-2025-63914?: CVE-2025-63914 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-63914 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63914?: CVE-2025-63914 affects Cinnamon Kotaemon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63914?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-63914 have an EU (EUVD) identifier?: Yes. CVE-2025-63914 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198989.
When was CVE-2025-63914 published?: CVE-2025-63914 was published on 2025-11-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cinnamon:kotaemon:0.11.0:*:*:*:*:*:*:*

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