CRITICAL
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function
Published Feb 19, 2020
9.8
CRITICALCVSS 3.1
EPSS 4.96%
Description
JYaml through 1.3 allows remote code execution during deserialization of a malicious payload through the load() function. NOTE: this is a discontinued product.
Affected products
No data.
- ≤ 1.3
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.
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.96% 0.04962
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.04962
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 (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.96% (0.04962) | 91.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.84% (0.04841) | 90.84th | v5 (v2026.06.15) |
| Nov 21, 2025 | 7.58% (0.07580) | 91.45th | v4 (v2025.03.14) |
| Nov 18, 2025 | 4.96% (0.04964) | 88.62th | v4 (v2025.03.14) |
| May 11, 2025 | 7.58% (0.07580) | 91.35th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.96% (0.04964) | 88.67th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.05% (0.15050) | 90.99th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.96% (0.04964) | 88.94th | v4 (v2025.03.14) |
| Feb 12, 2025 | 7.64% (0.07643) | 94.21th | v3 (v2023.03.01) |
| Dec 17, 2024 | 6.31% (0.06309) | 93.57th | v3 (v2023.03.01) |
| Apr 22, 2023 | 2.81% (0.02808) | 89.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.00% (0.02000) | 87.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.63% (0.05634) | 90.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.63% (0.05634) | 89.29th | v2 (v2022.01.01) |
| Feb 4, 2022 | 53.74% (0.53745) | 98.42th | v2 (v2022.01.01) |
| Feb 3, 2022 | 11.16% (0.11165) | 88.15th | v1 |
| Jan 6, 2022 | 11.16% (0.11165) | 88.00th | v1 |
| Sep 1, 2021 | 2.73% (0.02725) | 79.44th | v1 |
| Apr 14, 2021 | 2.73% (0.02725) | 0.00th | v1 |
Weaknesses (1)
References (7)
- https://gist.github.com/j0lt-github/f5141abcacae63d434ecae211422153a x_refsource_MISCExploitThird Party Advisory
- https://github.com/advisories/GHSA-4qhr-q7wf-94xp Advisory
- https://github.com/mbechler/marshalsec x_refsource_MISCThird Party Advisory
- https://github.com/mbechler/marshalsec/blob/master/marshalsec.pdf x_refsource_MISCTechnical DescriptionThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-8441
- https://security.netapp.com/advisory/ntap-20200313-0001/ x_refsource_CONFIRM
- https://sourceforge.net/p/jyaml/bugs/ x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://gist.github.com/j0lt-github/f5141abcacae63d434ecae211422153a | x_refsource_MISCExploitThird Party Advisory | |
| https://github.com/advisories/GHSA-4qhr-q7wf-94xp | Advisory | |
| https://github.com/mbechler/marshalsec | x_refsource_MISCThird Party Advisory | |
| https://github.com/mbechler/marshalsec/blob/master/marshalsec.pdf | x_refsource_MISCTechnical DescriptionThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-8441 | ||
| https://security.netapp.com/advisory/ntap-20200313-0001/ | x_refsource_CONFIRM | |
| https://sourceforge.net/p/jyaml/bugs/ | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 19, 2020
Updated Aug 4, 2024
Reserved Jan 29, 2020
Link CVE-2020-8441
CISA Vulnrichment
GHSA-4QHR-Q7WF-94XP Updated n/a