How severe is CVE-2021-45291?

CVE-2021-45291 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-2021-45291 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45291?

CVE-2021-45291 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45291?

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

When was CVE-2021-45291 published?

CVE-2021-45291 was published on 2021-12-21 and last updated on 2026-06-17.

CVE-2021-45291

CVE-2021-45291 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. The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Gpac
Published: 2021-12-21
Last modified: 2026-06-17

Description

The gf_dump_setup function in GPAC 1.0.1 allows malicoius users to cause a denial of service (Invalid memory address dereference) via a crafted file in the MP4Box command.

Frequently asked questions

What is CVE-2021-45291?: The gf_dump_setup function in GPAC 1.0.1 allows malicoius users to cause a denial of service (Invalid memory address dereference) via a crafted file in the MP4Box command.
How severe is CVE-2021-45291?: CVE-2021-45291 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-2021-45291 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45291?: CVE-2021-45291 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45291?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45291 published?: CVE-2021-45291 was published on 2021-12-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*

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