How severe is CVE-2018-14446?

CVE-2018-14446 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-2018-14446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14446?

CVE-2018-14446 affects Techsmith Mp4v2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14446?

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-2018-14446 published?

CVE-2018-14446 was published on 2018-07-20 and last updated on 2026-06-17.

CVE-2018-14446

CVE-2018-14446 is a high-severity vulnerability in Techsmith 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Techsmith Mp4v2
Published: 2018-07-20
Last modified: 2026-06-17

Description

MP4Integer32Property::Read in atom_avcC.cpp in MP4v2 2.1.0 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted MP4 file.

Frequently asked questions

What is CVE-2018-14446?: MP4Integer32Property::Read in atom_avcC.cpp in MP4v2 2.1.0 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted MP4 file.
How severe is CVE-2018-14446?: CVE-2018-14446 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-2018-14446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14446?: CVE-2018-14446 affects Techsmith Mp4v2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14446?: 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-2018-14446 published?: CVE-2018-14446 was published on 2018-07-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:techsmith:mp4v2:2.1.0:*:*:*:*:*:*:*

More vulnerabilities in Techsmith Mp4v2

CVE-2018-14403 — Critical (CVSS 9.8): MP4NameFirstMatches in mp4util.cpp in MP4v2 2.0.0 mishandles substrings of atom names, leading to use of an…
CVE-2018-14054 — Critical (CVSS 9.8): A double free exists in the MP4StringProperty class in mp4property.cpp in MP4v2 2.0.0. A dangling pointer is freed…
CVE-2018-14379 — High (CVSS 8.8): MP4Atom::factory in mp4atom.cpp in MP4v2 2.0.0 incorrectly uses the MP4ItemAtom data type in a certain case where…
CVE-2018-14326 — High (CVSS 8.8): In MP4v2 2.0.0, there is an integer overflow (with resultant memory corruption) when resizing MP4Array for the ftyp…
CVE-2018-14325 — High (CVSS 8.8): In MP4v2 2.0.0, there is an integer underflow (with resultant memory corruption) when parsing MP4Atom in mp4atom.cpp.

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