A heap-based Buffer Overflow vulnerability in FFmpeg 4.2 at libavcodec/get_bits.h when writing .mov files, which might lead to memory corruption and other potential consequences
Published May 27, 2021
8.8
HIGHCVSS 3.1
EPSS 1.60%
Description
A heap-based Buffer Overflow vulnerability in FFmpeg 4.2 at libavcodec/get_bits.h when writing .mov files, which might lead to memory corruption and other potential consequences.
Affected products
No data.
Configuration 2
- 9.0
- 10.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.60% (0.01605) | 74.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.59% (0.01592) | 72.42th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.36% (0.00356) | 55.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.49% (0.00492) | 76.94th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.41% (0.00408) | 73.85th | v3 (v2023.03.01) |
| Feb 10, 2024 | 0.29% (0.00287) | 67.97th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.30% (0.00296) | 68.51th | v3 (v2023.03.01) |
| Jan 1, 2024 | 0.30% (0.00296) | 66.11th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.25% (0.00249) | 62.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00208) | 56.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.38% (0.07376) | 80.76th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.98% (0.02982) | 64.96th | v1 |
| Jan 6, 2022 | 2.98% (0.02982) | 64.63th | v1 |
| Jan 5, 2022 | 0.68% (0.00680) | 48.91th | v5 (v2026.06.15) |
| Oct 21, 2021 | 0.68% (0.00680) | 48.10th | v1 |
| Sep 1, 2021 | 0.51% (0.00510) | 28.30th | v1 |
| Aug 15, 2021 | 0.51% (0.00510) | 0.00th | v1 |
| May 28, 2021 | 0.34% (0.00340) | 0.00th | v1 |
References (3)
- https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://trac.ffmpeg.org/ticket/8183 x_refsource_MISCExploitIssue TrackingVendor Advisory
- https://www.debian.org/security/2021/dsa-4990 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://trac.ffmpeg.org/ticket/8183 | x_refsource_MISCExploitIssue TrackingVendor Advisory | |
| https://www.debian.org/security/2021/dsa-4990 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.