How severe is CVE-2023-6601?

CVE-2023-6601 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-6601 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6601?

CVE-2023-6601 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6601?

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

Does CVE-2023-6601 have an EU (EUVD) identifier?

Yes. CVE-2023-6601 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58824.

When was CVE-2023-6601 published?

CVE-2023-6601 was published on 2025-01-06 and last updated on 2026-06-17.

CVE-2023-6601

CVE-2023-6601 is a medium-severity vulnerability in Ffmpeg with a CVSS 3.x base score of 4.7. 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-99.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58824
Weakness: CWE-99
Affected product: Ffmpeg
Published: 2025-01-06
Last modified: 2026-06-17

Description

A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.

Frequently asked questions

What is CVE-2023-6601?: A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.
How severe is CVE-2023-6601?: CVE-2023-6601 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-6601 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6601?: CVE-2023-6601 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6601?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6601 have an EU (EUVD) identifier?: Yes. CVE-2023-6601 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58824.
When was CVE-2023-6601 published?: CVE-2023-6601 was published on 2025-01-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

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