An issue was discovered in LibSass through 3.5.4
Published Jun 4, 2018
8.1
HIGHCVSS 3.0
EPSS 1.65%
Description
An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
AV:N/AC:M/Au:N/C:P/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 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.65% (0.01655) | 75.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.65% (0.01655) | 73.43th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.22% (0.00217) | 60.14th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.22% (0.00217) | 58.61th | v3 (v2023.03.01) |
| May 8, 2023 | 0.18% (0.00178) | 53.47th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00217) | 57.87th | 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 | 0.52% (0.00518) | 11.68th | v1 |
| Jan 6, 2022 | 0.52% (0.00518) | 11.22th | v1 |
| Sep 1, 2021 | 0.52% (0.00518) | 29.97th | v1 |
| Apr 14, 2021 | 0.52% (0.00518) | 0.00th | v1 |
References (1)
- https://github.com/sass/libsass/issues/2656 x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/sass/libsass/issues/2656 | x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory |
Change history (0)
No recorded changes yet.