How severe is CVE-2021-46313?

CVE-2021-46313 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-2021-46313 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46313?

CVE-2021-46313 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46313?

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

When was CVE-2021-46313 published?

CVE-2021-46313 was published on 2022-01-21 and last updated on 2026-06-17.

CVE-2021-46313

CVE-2021-46313 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% (45th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gpac
Published: 2022-01-21
Last modified: 2026-06-17

Description

The binary MP4Box in GPAC v1.0.1 was discovered to contain a segmentation fault via the function __memmove_avx_unaligned_erms (). This vulnerability can lead to a Denial of Service (DoS).

Frequently asked questions

What is CVE-2021-46313?: The binary MP4Box in GPAC v1.0.1 was discovered to contain a segmentation fault via the function __memmove_avx_unaligned_erms (). This vulnerability can lead to a Denial of Service (DoS).
How severe is CVE-2021-46313?: CVE-2021-46313 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-2021-46313 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46313?: CVE-2021-46313 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46313?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-46313 published?: CVE-2021-46313 was published on 2022-01-21 and last updated on 2026-06-17.

References

https://github.com/gpac/gpac/issues/2039

Affected products (1)

cpe:2.3:a:gpac:gpac:1.1.0:dev:*:*:*:*:*:*

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