How severe is CVE-2025-8584?

CVE-2025-8584 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-8584 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-8584?

CVE-2025-8584 affects Libav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-8584?

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

Does CVE-2025-8584 have an EU (EUVD) identifier?

Yes. CVE-2025-8584 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23644.

When was CVE-2025-8584 published?

CVE-2025-8584 was published on 2025-08-05 and last updated on 2026-06-17.

CVE-2025-8584

CVE-2025-8584 is a low-severity vulnerability in Libav with a CVSS 3.x base score of 3.3. 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-404.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.7
CVSS v4: 1.9
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23644
Weakness: CWE-404
Affected product: Libav
Published: 2025-08-05
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in libav up to 12.3. Affected by this vulnerability is the function av_buffer_unref of the file libavutil/buffer.c of the component AVI File Parser. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The bug was initially reported by the researcher to the wrong project. This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2025-8584?: A vulnerability classified as problematic was found in libav up to 12.3. Affected by this vulnerability is the function av_buffer_unref of the file libavutil/buffer.c of the component AVI File Parser. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The bug was initially reported by the researcher to the wrong project. This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2025-8584?: CVE-2025-8584 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-8584 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-8584?: CVE-2025-8584 affects Libav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-8584?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8584 have an EU (EUVD) identifier?: Yes. CVE-2025-8584 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23644.
When was CVE-2025-8584 published?: CVE-2025-8584 was published on 2025-08-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*

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