How severe is CVE-2025-3804?

CVE-2025-3804 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-3804 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-3804?

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

Does CVE-2025-3804 have an EU (EUVD) identifier?

Yes. CVE-2025-3804 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11942.

When was CVE-2025-3804 published?

CVE-2025-3804 was published on 2025-04-19 and last updated on 2026-06-17.

CVE-2025-3804

CVE-2025-3804 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 4.8
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11942
Weakness: CWE-74
Published: 2025-04-19
Last modified: 2026-06-17

Description

A vulnerability classified as critical has been found in thautwarm vscode-diana 0.0.1. Affected is an unknown function of the file Gen.py of the component Jinja2 Template Handler. The manipulation leads to injection. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-3804?: A vulnerability classified as critical has been found in thautwarm vscode-diana 0.0.1. Affected is an unknown function of the file Gen.py of the component Jinja2 Template Handler. The manipulation leads to injection. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-3804?: CVE-2025-3804 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-3804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-3804?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3804 have an EU (EUVD) identifier?: Yes. CVE-2025-3804 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11942.
When was CVE-2025-3804 published?: CVE-2025-3804 was published on 2025-04-19 and last updated on 2026-06-17.

References

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