MEDIUM
read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file
Published Apr 23, 2019
5.5
MEDIUMCVSS 3.0
EPSS 0.96%
Description
read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
5.5 MEDIUM NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.96% 0.00959
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00959
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.96% (0.00959) | 60.09th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.96% (0.00959) | 59.96th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.06% (0.00063) | 27.99th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.06% (0.00063) | 27.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00063) | 25.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
Weaknesses (1)
References (2)
- https://github.com/dropbox/lepton/commit/6a5ceefac1162783fffd9506a3de39c85c725761 x_refsource_MISCPatchThird Party Advisory
- https://github.com/dropbox/lepton/issues/111 x_refsource_MISCExploitPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/dropbox/lepton/commit/6a5ceefac1162783fffd9506a3de39c85c725761 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/dropbox/lepton/issues/111 | x_refsource_MISCExploitPatchThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 23, 2019
Updated Aug 5, 2024
Reserved Apr 23, 2019
Link CVE-2018-20820
CISA Vulnrichment
Updated n/a