MEDIUM
Stack overflow vulnerability in parse_block Cesanta MJS 1.20.1, allows remote attackers to cause a Denial of Service (DoS) via a crafted file
Published May 28, 2021
5.5
MEDIUMCVSS 3.1
EPSS 0.82%
Description
Stack overflow vulnerability in parse_block Cesanta MJS 1.20.1, allows remote attackers to cause a Denial of Service (DoS) via a crafted file.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
5.5 MEDIUM NVD
CVSS:3.1/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
No CVSS v3.0 score for this CVE.
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.
0.82% 0.00823
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00823
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.82% (0.00823) | 55.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.82% (0.00823) | 52.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.22% (0.00219) | 42.55th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00110) | 45.79th | v3 (v2023.03.01) |
| Feb 11, 2024 | 0.11% (0.00110) | 42.82th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.10% (0.00103) | 41.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00070) | 28.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.86% (0.02857) | 63.60th | v1 |
| Jan 6, 2022 | 2.86% (0.02857) | 63.25th | v1 |
| Jan 5, 2022 | 0.65% (0.00651) | 47.22th | v1 |
| Jun 8, 2021 | 0.65% (0.00651) | 0.00th | v1 |
| Jun 2, 2021 | 2.86% (0.02857) | 0.00th | v1 |
| Jun 1, 2021 | 0.65% (0.00651) | 0.00th | v5 (v2026.06.15) |
| May 29, 2021 | 0.65% (0.00651) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://github.com/cesanta/mjs/issues/135 x_refsource_MISCExploitIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/cesanta/mjs/issues/135 | x_refsource_MISCExploitIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 28, 2021
Updated Aug 4, 2024
Reserved May 28, 2021
Link CVE-2020-36367
CISA Vulnrichment
Updated n/a