How severe is CVE-2022-47656?

CVE-2022-47656 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-47656 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-47656?

CVE-2022-47656 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-47656?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-47656 published?

CVE-2022-47656 was published on 2023-01-05 and last updated on 2026-06-17.

CVE-2022-47656

CVE-2022-47656 is a high-severity vulnerability in Gpac with a CVSS 3.x base score of 7.8. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Gpac
Published: 2023-01-05
Last modified: 2026-06-17

Description

GPAC MP4box 2.1-DEV-rev617-g85ce76efd is vulnerable to Buffer Overflow in gf_hevc_read_sps_bs_internal function of media_tools/av_parsers.c:8273

Frequently asked questions

What is CVE-2022-47656?: GPAC MP4box 2.1-DEV-rev617-g85ce76efd is vulnerable to Buffer Overflow in gf_hevc_read_sps_bs_internal function of media_tools/av_parsers.c:8273
How severe is CVE-2022-47656?: CVE-2022-47656 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-47656 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-47656?: CVE-2022-47656 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-47656?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-47656 published?: CVE-2022-47656 was published on 2023-01-05 and last updated on 2026-06-17.

References

https://github.com/gpac/gpac/issues/2353

Affected products (1)

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

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