HIGH
Espruino before 1.99 allows attackers to cause a denial of service (application crash) and potential Information Disclosure with a user crafted input file via a Buffer Overflow during syntax parsing because strncpy is misused in jslex.c
Published May 31, 2018
7.1
HIGHCVSS 3.0
EPSS 1.23%
Description
Espruino before 1.99 allows attackers to cause a denial of service (application crash) and potential Information Disclosure with a user crafted input file via a Buffer Overflow during syntax parsing because strncpy is misused in jslex.c.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.1 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact High
5.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.23% 0.01231
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.01231
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.23% (0.01231) | 67.89th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.23% (0.01231) | 67.61th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00096) | 40.70th | v3 (v2023.03.01) |
| May 24, 2024 | 0.10% (0.00096) | 40.24th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.07% (0.00074) | 30.80th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.07% (0.00065) | 26.60th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.06% (0.00059) | 22.27th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.16% (0.00157) | 51.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00132) | 46.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
Weaknesses (1)
References (3)
- https://github.com/espruino/Espruino/commit/bed844f109b6c222816740555068de2e101e8018 x_refsource_MISCPatchVendor Advisory
- https://github.com/espruino/Espruino/files/2019228/eh_0.txt x_refsource_MISCExploitVendor Advisory
- https://github.com/espruino/Espruino/issues/1426 x_refsource_MISCIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/espruino/Espruino/commit/bed844f109b6c222816740555068de2e101e8018 | x_refsource_MISCPatchVendor Advisory | |
| https://github.com/espruino/Espruino/files/2019228/eh_0.txt | x_refsource_MISCExploitVendor Advisory | |
| https://github.com/espruino/Espruino/issues/1426 | x_refsource_MISCIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 31, 2018
Updated Sep 16, 2024
Reserved May 31, 2018
Link CVE-2018-11593
CISA Vulnrichment
Updated n/a