How severe is CVE-2025-70309?

CVE-2025-70309 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-2025-70309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-70309?

CVE-2025-70309 affects Gpac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-70309?

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

Does CVE-2025-70309 have an EU (EUVD) identifier?

Yes. CVE-2025-70309 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2739.

When was CVE-2025-70309 published?

CVE-2025-70309 was published on 2026-01-15 and last updated on 2026-06-17.

CVE-2025-70309

CVE-2025-70309 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-121.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2739
Weakness: CWE-121
Affected product: Gpac
Published: 2026-01-15
Last modified: 2026-06-17

Description

A stack overflow in the pcmreframe_flush_packet function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted WAV file.

Frequently asked questions

What is CVE-2025-70309?: A stack overflow in the pcmreframe_flush_packet function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted WAV file.
How severe is CVE-2025-70309?: CVE-2025-70309 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-2025-70309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-70309?: CVE-2025-70309 affects Gpac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-70309?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-70309 have an EU (EUVD) identifier?: Yes. CVE-2025-70309 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2739.
When was CVE-2025-70309 published?: CVE-2025-70309 was published on 2026-01-15 and last updated on 2026-06-17.

References

https://github.com/zakkanijia/POC/blob/main/gpac_rawpcm/GPAC_RFPCM.md

Affected products (1)

cpe:2.3:a:gpac:gpac:2.4.0:*:*:*:*:*:*:*

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