How severe is CVE-2018-19129?

CVE-2018-19129 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-2018-19129 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19129?

CVE-2018-19129 affects Libav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19129?

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

When was CVE-2018-19129 published?

CVE-2018-19129 was published on 2018-11-09 and last updated on 2026-06-17.

CVE-2018-19129

CVE-2018-19129 is a medium-severity vulnerability in Libav 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Libav
Published: 2018-11-09
Last modified: 2026-06-17

Description

In Libav 12.3, a NULL pointer dereference (RIP points to zero) issue in ff_mpa_synth_filter_float in libavcodec/mpegaudiodsp_template.c can cause a segmentation fault (application crash) via a crafted mov file.

Frequently asked questions

What is CVE-2018-19129?: In Libav 12.3, a NULL pointer dereference (RIP points to zero) issue in ff_mpa_synth_filter_float in libavcodec/mpegaudiodsp_template.c can cause a segmentation fault (application crash) via a crafted mov file.
How severe is CVE-2018-19129?: CVE-2018-19129 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-2018-19129 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19129?: CVE-2018-19129 affects Libav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19129?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-19129 published?: CVE-2018-19129 was published on 2018-11-09 and last updated on 2026-06-17.

References

https://bugzilla.libav.org/show_bug.cgi?id=1138

Affected products (1)

cpe:2.3:a:libav:libav:12.3:*:*:*:*:*:*:*

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