How severe is CVE-2018-7339?

CVE-2018-7339 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-7339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7339?

CVE-2018-7339 affects Mp4v2 Project Mp4v2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7339?

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-2018-7339 published?

CVE-2018-7339 was published on 2018-02-23 and last updated on 2026-06-17.

CVE-2018-7339

CVE-2018-7339 is a high-severity vulnerability in Mp4v2 Project Mp4v2 with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Mp4v2 Project Mp4v2
Published: 2018-02-23
Last modified: 2026-06-17

Description

The MP4Atom class in mp4atom.cpp in MP4v2 through 2.0.0 mishandles Entry Number validation for the MP4 Table Property, which allows remote attackers to cause a denial of service (overflow, insufficient memory allocation, and segmentation fault) or possibly have unspecified other impact via a crafted mp4 file.

Frequently asked questions

What is CVE-2018-7339?: The MP4Atom class in mp4atom.cpp in MP4v2 through 2.0.0 mishandles Entry Number validation for the MP4 Table Property, which allows remote attackers to cause a denial of service (overflow, insufficient memory allocation, and segmentation fault) or possibly have unspecified other impact via a crafted mp4 file.
How severe is CVE-2018-7339?: CVE-2018-7339 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-7339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7339?: CVE-2018-7339 affects Mp4v2 Project Mp4v2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7339?: 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-2018-7339 published?: CVE-2018-7339 was published on 2018-02-23 and last updated on 2026-06-17.

References

https://github.com/pingsuewim/libmp4_bof

Affected products (1)

cpe:2.3:a:mp4v2_project:mp4v2:*:*:*:*:*:*:*:*

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