How severe is CVE-2021-40567?

CVE-2021-40567 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-40567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40567?

CVE-2021-40567 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40567?

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

When was CVE-2021-40567 published?

CVE-2021-40567 was published on 2022-01-13 and last updated on 2026-06-17.

CVE-2021-40567

CVE-2021-40567 is a medium-severity vulnerability in Gpac with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gpac
Published: 2022-01-13
Last modified: 2026-06-17

Description

Segmentation fault vulnerability exists in Gpac through 1.0.1 via the gf_odf_size_descriptor function in desc_private.c when using mp4box, which causes a denial of service.

Frequently asked questions

What is CVE-2021-40567?: Segmentation fault vulnerability exists in Gpac through 1.0.1 via the gf_odf_size_descriptor function in desc_private.c when using mp4box, which causes a denial of service.
How severe is CVE-2021-40567?: CVE-2021-40567 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-40567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40567?: CVE-2021-40567 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40567?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40567 published?: CVE-2021-40567 was published on 2022-01-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

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