A heap-based buffer overflow vulnerability in the function ok_jpg_decode_block_progressive() at ok_jpg.c:1054 of ok-file-formats through 2020-06-26 allows attackers to cause a Denial of Service (DOS) via a crafted jpeg file
Published Jul 15, 2021
6.5
MEDIUMCVSS 3.1
EPSS 1.10%
Description
A heap-based buffer overflow vulnerability in the function ok_jpg_decode_block_progressive() at ok_jpg.c:1054 of ok-file-formats through 2020-06-26 allows attackers to cause a Denial of Service (DOS) via a crafted jpeg file.
Affected products
No data.
- ≤ 2020-06-26
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:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/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 3, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.10% (0.01098) | 64.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.10% (0.01098) | 61.22th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.16% (0.00164) | 34.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00116) | 47.00th | v3 (v2023.03.01) |
| Mar 30, 2024 | 0.12% (0.00116) | 44.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00109) | 42.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Mar 31, 2022 | 2.56% (0.02561) | 62.63th | v2 (v2022.01.01) |
| Jan 6, 2022 | 2.28% (0.02283) | 51.78th | v1 |
| Jan 5, 2022 | 0.52% (0.00518) | 31.20th | v5 (v2026.06.15) |
| Jul 16, 2021 | 0.52% (0.00518) | 0.00th | v1 |
References (2)
- https://cwe.mitre.org/data/definitions/122.html x_refsource_MISCTechnical Description
- https://github.com/brackeen/ok-file-formats/issues/8 x_refsource_MISCExploitIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://cwe.mitre.org/data/definitions/122.html | x_refsource_MISCTechnical Description | |
| https://github.com/brackeen/ok-file-formats/issues/8 | x_refsource_MISCExploitIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.