How severe is CVE-2018-5253?

CVE-2018-5253 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-5253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5253?

CVE-2018-5253 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-5253?

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-2018-5253 published?

CVE-2018-5253 was published on 2018-01-05 and last updated on 2026-06-17.

CVE-2018-5253

CVE-2018-5253 is a high-severity vulnerability in Axiosys Bento4 with a CVSS 3.x base score of 7.8. 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-835.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-835
Affected product: Axiosys Bento4
Published: 2018-01-05
Last modified: 2026-06-17

Description

The AP4_FtypAtom class in Core/Ap4FtypAtom.cpp in Bento4 1.5.1.0 has an Infinite loop via a crafted MP4 file that triggers size mishandling.

Frequently asked questions

What is CVE-2018-5253?: The AP4_FtypAtom class in Core/Ap4FtypAtom.cpp in Bento4 1.5.1.0 has an Infinite loop via a crafted MP4 file that triggers size mishandling.
How severe is CVE-2018-5253?: CVE-2018-5253 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-5253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5253?: CVE-2018-5253 affects Axiosys Bento4. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-5253?: 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-2018-5253 published?: CVE-2018-5253 was published on 2018-01-05 and last updated on 2026-06-17.

References

https://github.com/axiomatic-systems/Bento4/issues/233

Affected products (1)

cpe:2.3:a:axiosys:bento4:1.5.1.0:*:*:*:*:*:*:*

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