How severe is CVE-2023-6604?

CVE-2023-6604 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2023-6604 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6604?

CVE-2023-6604 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6604?

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

Does CVE-2023-6604 have an EU (EUVD) identifier?

Yes. CVE-2023-6604 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58827.

When was CVE-2023-6604 published?

CVE-2023-6604 was published on 2025-01-06 and last updated on 2026-06-17.

CVE-2023-6604

CVE-2023-6604 is a medium-severity vulnerability in Ffmpeg 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-99.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58827
Weakness: CWE-99
Affected product: Ffmpeg
Published: 2025-01-06
Last modified: 2026-06-17

Description

A flaw was found in FFmpeg. This vulnerability allows unexpected additional CPU load and storage consumption, potentially leading to degraded performance or denial of service via the demuxing of arbitrary data as XBIN-formatted data without proper format validation.

Frequently asked questions

What is CVE-2023-6604?: A flaw was found in FFmpeg. This vulnerability allows unexpected additional CPU load and storage consumption, potentially leading to degraded performance or denial of service via the demuxing of arbitrary data as XBIN-formatted data without proper format validation.
How severe is CVE-2023-6604?: CVE-2023-6604 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2023-6604 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6604?: CVE-2023-6604 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6604?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6604 have an EU (EUVD) identifier?: Yes. CVE-2023-6604 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58827.
When was CVE-2023-6604 published?: CVE-2023-6604 was published on 2025-01-06 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Ffmpeg

CVE-2013-0864 — Critical (CVSS 10.0): The gif_copy_img_rect function in libavcodec/gifdec.c in FFmpeg before 1.1.2 performs an incorrect calculation for an…
CVE-2013-4265 — Critical (CVSS 10.0): The av_reallocp_array function in libavutil/mem.c in FFmpeg before 2.0.1 has an unspecified impact and remote vectors…
CVE-2013-0873 — Critical (CVSS 10.0): The read_header function in libavcodec/shorten.c in FFmpeg before 1.1.3 allows remote attackers to have an unspecified…
CVE-2013-0872 — Critical (CVSS 10.0): The swr_init function in libswresample/swresample.c in FFmpeg before 1.1.3 allows remote attackers to have an…
CVE-2011-3937 — Critical (CVSS 10.0): The H.263 codec (libavcodec/h263dec.c) in FFmpeg 0.7.x before 0.7.12, 0.8.x before 0.8.11, and unspecified versions…
CVE-2012-2804 — Critical (CVSS 10.0): Unspecified vulnerability in libavcodec/indeo3.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unknown impact…

All CVEs affecting Ffmpeg →

Other CWE-99 vulnerabilities

CVE-2025-43491 — Critical (CVSS 9.8): A vulnerability in the Poly Lens Desktop application running on the Windows platform might allow modifications to the…
CVE-2017-5159 — Critical (CVSS 9.8): An issue was discovered on Phoenix Contact mGuard devices that have been updated to Version 8.4.0. When updating an…
CVE-2025-2410 — Critical (CVSS 9.1): Port manipulation vulnerabilities in ASPECT provide attackers with the ability to con-trol TCP/IP port access if…
CVE-2025-0756 — Critical (CVSS 9.1): Overview The product receives input from an upstream component, but it does not restrict or incorrectly…
CVE-2024-57971 — Critical (CVSS 9.1): DataSourceResource.java in the SpagoBI API support in Knowage Server in KNOWAGE before 8.1.30 does not ensure that…
CVE-2024-5706 — High (CVSS 8.8): The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input…

Browse all CWE-99 vulnerabilities →