MEDIUM
wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument
Published Dec 20, 2018
6.5
MEDIUMCVSS 3.0
EPSS 0.86%
Description
wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.
Affected products
No data.
- 0.01
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.
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
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.
0.86% 0.00859
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.00859
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 3, 2026 | 0.86% (0.00859) | 57.05th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.86% (0.00859) | 56.92th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00081) | 35.05th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.08% (0.00081) | 34.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00081) | 32.83th | 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 | 0.52% (0.00518) | 11.68th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.52% (0.00518) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://github.com/devinsmith/libexcel/issues/9 x_refsource_MISCExploitIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/devinsmith/libexcel/issues/9 | x_refsource_MISCExploitIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Dec 20, 2018
Updated Aug 5, 2024
Reserved Dec 19, 2018
Link CVE-2018-20304
CISA Vulnrichment
Updated n/a