CRITICAL
DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled
Published Nov 20, 2018
9.8
CRITICALCVSS 3.1
EPSS 2.04%
Description
DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.
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.
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.04% 0.02041
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.02041
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.04% (0.02041) | 80.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.04% (0.02041) | 78.56th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.47% (0.00471) | 61.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.79% (0.01790) | 71.53th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.39% (0.00387) | 73.43th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.39% (0.00387) | 72.46th | v3 (v2023.03.01) |
| May 8, 2023 | 0.39% (0.00387) | 69.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00336) | 66.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
Weaknesses (1)
References (1)
- http://www.openwall.com/lists/oss-security/2018/11/02/2 mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2018/11/02/2 | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 20, 2018
Updated Aug 5, 2024
Reserved Oct 17, 2018
Link CVE-2018-18439
CISA Vulnrichment
Updated n/a