How severe is CVE-2020-24995?

CVE-2020-24995 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-24995 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24995?

CVE-2020-24995 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24995?

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-2020-24995 published?

CVE-2020-24995 was published on 2021-03-30 and last updated on 2026-06-17.

CVE-2020-24995

CVE-2020-24995 is a high-severity vulnerability in Ffmpeg 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Ffmpeg
Published: 2021-03-30
Last modified: 2026-06-17

Description

Buffer overflow vulnerability in sniff_channel_order function in aacdec_template.c in ffmpeg 3.1.2, allows attackers to execute arbitrary code (local).

Frequently asked questions

What is CVE-2020-24995?: Buffer overflow vulnerability in sniff_channel_order function in aacdec_template.c in ffmpeg 3.1.2, allows attackers to execute arbitrary code (local).
How severe is CVE-2020-24995?: CVE-2020-24995 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-24995 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24995?: CVE-2020-24995 affects Ffmpeg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24995?: 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-2020-24995 published?: CVE-2020-24995 was published on 2021-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ffmpeg:ffmpeg:3.1.2:*:*:*:*:*:*:*

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CVE-2013-0872 — Critical (CVSS 10.0): The swr_init function in libswresample/swresample.c in FFmpeg before 1.1.3 allows remote attackers to have an…
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CVE-2012-2804 — Critical (CVSS 10.0): Unspecified vulnerability in libavcodec/indeo3.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unknown impact…

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