CRITICAL
The VC-2 Video Compression encoder in FFmpeg 3.0 and 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because of incorrect buffer padding for non-Haar wavelets, related to libavcodec/vc2enc.c and libavcodec/vc2enc_dwt.c
Published Nov 21, 2017
9.8
CRITICALCVSS 3.1
EPSS 3.33%
Description
The VC-2 Video Compression encoder in FFmpeg 3.0 and 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because of incorrect buffer padding for non-Haar wavelets, related to libavcodec/vc2enc.c and libavcodec/vc2enc_dwt.c.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.33% 0.03332
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.03332
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.33% (0.03332) | 88.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.33% (0.03332) | 87.01th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.67% (0.01669) | 80.42th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.69% (0.03687) | 79.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.84% (0.01844) | 81.80th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.53% (0.00531) | 77.85th | v3 (v2023.03.01) |
| Feb 13, 2024 | 0.53% (0.00531) | 76.39th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.53% (0.00531) | 74.39th | v3 (v2023.03.01) |
| Sep 6, 2023 | 0.46% (0.00462) | 72.31th | v3 (v2023.03.01) |
| Jun 17, 2023 | 0.49% (0.00488) | 72.64th | v3 (v2023.03.01) |
| May 24, 2023 | 0.46% (0.00465) | 71.84th | v3 (v2023.03.01) |
| May 8, 2023 | 0.69% (0.00685) | 77.05th | v3 (v2023.03.01) |
| Apr 14, 2023 | 0.52% (0.00520) | 73.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.50% (0.00504) | 72.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.62% (0.01623) | 33.90th | v1 |
| Jan 6, 2022 | 1.62% (0.01623) | 33.20th | v1 |
| Sep 1, 2021 | 1.62% (0.01623) | 73.32th | v1 |
| Apr 14, 2021 | 1.62% (0.01623) | 0.00th | v1 |
Weaknesses (1)
References (4)
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=a94cb36ab2ad99d3a1331c9f91831ef593d94f74 x_refsource_MISC
- http://www.securityfocus.com/bid/101924 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/FFmpeg/FFmpeg/commit/94e538aebbc9f9c529e8b1f2eda860cfb8c473b1 x_refsource_CONFIRMPatchThird Party Advisory
- https://www.debian.org/security/2017/dsa-4049 vendor-advisoryx_refsource_DEBIANVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=a94cb36ab2ad99d3a1331c9f91831ef593d94f74 | x_refsource_MISC | |
| http://www.securityfocus.com/bid/101924 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/FFmpeg/FFmpeg/commit/94e538aebbc9f9c529e8b1f2eda860cfb8c473b1 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://www.debian.org/security/2017/dsa-4049 | vendor-advisoryx_refsource_DEBIANVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 21, 2017
Updated Aug 5, 2024
Reserved Nov 15, 2017
Link CVE-2017-16840
CISA Vulnrichment
Updated n/a