How severe is CVE-2018-20659?

CVE-2018-20659 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-2018-20659 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20659?

CVE-2018-20659 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20659?

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

When was CVE-2018-20659 published?

CVE-2018-20659 was published on 2019-01-02 and last updated on 2026-06-17.

CVE-2018-20659

CVE-2018-20659 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% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Axiosys Bento4
Published: 2019-01-02
Last modified: 2026-06-17

Description

An issue was discovered in Bento4 1.5.1-627. The AP4_StcoAtom class in Core/Ap4StcoAtom.cpp has an attempted excessive memory allocation when called from AP4_AtomFactory::CreateAtomFromStream in Core/Ap4AtomFactory.cpp, as demonstrated by mp42hls.

Frequently asked questions

What is CVE-2018-20659?: An issue was discovered in Bento4 1.5.1-627. The AP4_StcoAtom class in Core/Ap4StcoAtom.cpp has an attempted excessive memory allocation when called from AP4_AtomFactory::CreateAtomFromStream in Core/Ap4AtomFactory.cpp, as demonstrated by mp42hls.
How severe is CVE-2018-20659?: CVE-2018-20659 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-2018-20659 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20659?: CVE-2018-20659 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20659?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20659 published?: CVE-2018-20659 was published on 2019-01-02 and last updated on 2026-06-17.

References

https://github.com/axiomatic-systems/Bento4/issues/350

Affected products (1)

cpe:2.3:a:axiosys:bento4:1.5.1-627:*:*:*:*:*:*:*

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