How severe is CVE-2023-33718?

CVE-2023-33718 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-2023-33718 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33718?

CVE-2023-33718 affects Mp4v2 Project Mp4v2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-33718?

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-2023-33718 published?

CVE-2023-33718 was published on 2023-05-31 and last updated on 2026-06-17.

CVE-2023-33718

CVE-2023-33718 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-401.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Mp4v2 Project Mp4v2
Published: 2023-05-31
Last modified: 2026-06-17

Description

mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp

Frequently asked questions

What is CVE-2023-33718?: mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp
How severe is CVE-2023-33718?: CVE-2023-33718 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-2023-33718 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33718?: CVE-2023-33718 affects Mp4v2 Project Mp4v2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-33718?: 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-2023-33718 published?: CVE-2023-33718 was published on 2023-05-31 and last updated on 2026-06-17.

References

https://github.com/enzo1982/mp4v2/issues/37

Affected products (1)

cpe:2.3:a:mp4v2_project:mp4v2:2.1.3:*:*:*:*:*:*:*

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