How severe is CVE-2020-6631?

CVE-2020-6631 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-2020-6631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6631?

CVE-2020-6631 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-6631?

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

When was CVE-2020-6631 published?

CVE-2020-6631 was published on 2020-01-09 and last updated on 2026-06-17.

CVE-2020-6631

CVE-2020-6631 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Gpac
Published: 2020-01-09
Last modified: 2026-06-17

Description

An issue was discovered in GPAC version 0.8.0. There is a NULL pointer dereference in the function gf_m2ts_stream_process_pmt() in media_tools/m2ts_mux.c.

Frequently asked questions

What is CVE-2020-6631?: An issue was discovered in GPAC version 0.8.0. There is a NULL pointer dereference in the function gf_m2ts_stream_process_pmt() in media_tools/m2ts_mux.c.
How severe is CVE-2020-6631?: CVE-2020-6631 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-2020-6631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6631?: CVE-2020-6631 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-6631?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-6631 published?: CVE-2020-6631 was published on 2020-01-09 and last updated on 2026-06-17.

References

https://github.com/gpac/gpac/issues/1378

Affected products (1)

cpe:2.3:a:gpac:gpac:0.8.0:*:*:*:*:*:*:*

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