How severe is CVE-2019-6966?

CVE-2019-6966 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-6966 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6966?

CVE-2019-6966 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6966?

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

When was CVE-2019-6966 published?

CVE-2019-6966 was published on 2019-01-25 and last updated on 2026-06-17.

CVE-2019-6966

CVE-2019-6966 is a medium-severity vulnerability in Axiosys Bento4 with a CVSS 3.x base score of 6.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Axiosys Bento4
Published: 2019-01-25
Last modified: 2026-06-17

Description

An issue was discovered in Bento4 1.5.1-628. The AP4_ElstAtom class in Core/Ap4ElstAtom.cpp has an attempted excessive memory allocation related to AP4_Array<AP4_ElstEntry>::EnsureCapacity in Core/Ap4Array.h, as demonstrated by mp42hls.

Frequently asked questions

What is CVE-2019-6966?: An issue was discovered in Bento4 1.5.1-628. The AP4_ElstAtom class in Core/Ap4ElstAtom.cpp has an attempted excessive memory allocation related to AP4_Array<AP4_ElstEntry>::EnsureCapacity in Core/Ap4Array.h, as demonstrated by mp42hls.
How severe is CVE-2019-6966?: CVE-2019-6966 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-6966 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6966?: CVE-2019-6966 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6966?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-6966 published?: CVE-2019-6966 was published on 2019-01-25 and last updated on 2026-06-17.

References

https://github.com/axiomatic-systems/Bento4/issues/361

Affected products (1)

cpe:2.3:a:axiosys:bento4:1.5.1-628:*:*:*:*:*:*:*

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