HIGH
A denial of service vulnerability exists when SymCrypt improperly handles a specially crafted digital signature.An attacker could exploit the vulnerability by creating a specially crafted connection or message.The security update addresses the vulnerability by correcting the way SymCrypt handles digital signatures., aka 'SymCrypt Denial of Service Vulnerability'
Published Jul 15, 2019
7.5
HIGHCVSS 3.0
EPSS 4.50%
Description
A denial of service vulnerability exists when SymCrypt improperly handles a specially crafted digital signature.An attacker could exploit the vulnerability by creating a specially crafted connection or message.The security update addresses the vulnerability by correcting the way SymCrypt handles digital signatures., aka 'SymCrypt Denial of Service Vulnerability'.
Affected products
-
- Version 10 Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1703 for x64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1709 for ARM64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1803 for ARM64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1809 for 32-bit SystemsStatusaffectedConstraints-
- Version 10 Version 1809 for ARM64-based SystemsStatusaffectedConstraints-
- Version 10 Version 1809 for x64-based SystemsStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version 2019StatusaffectedConstraints-
- Version 2019 (Core installation)StatusaffectedConstraints-
- Version version 1803 (Core Installation)StatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Windows | n/a |
| ||||||||||||||||||||||||||||||||||||
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | n/a |
| ||||||||||||||||||||||||||||||||||||
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | n/a |
| ||||||||||||||||||||||||||||||||||||
| Microsoft | Windows 10 Version 1903 for x64-based Systems | n/a |
| ||||||||||||||||||||||||||||||||||||
| Microsoft | Windows Server | n/a |
| ||||||||||||||||||||||||||||||||||||
| Microsoft | Windows Server, version 1903 (Server Core installation) | n/a |
|
OR
- 1703
- 1709
- 1803
- 1809
- 1903
- 1803
- 1903
- n/a
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
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.
4.50% 0.04502
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.04502
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.50% (0.04502) | 91.21th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.50% (0.04502) | 90.25th | v5 (v2026.06.15) |
| Jun 12, 2025 | 8.59% (0.08590) | 91.94th | v4 (v2025.03.14) |
| Mar 19, 2025 | 11.21% (0.11215) | 92.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.81% (0.07811) | 91.37th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00201) | 58.92th | v3 (v2023.03.01) |
| Nov 26, 2023 | 0.21% (0.00205) | 58.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00201) | 56.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.44% (0.03442) | 84.71th | v2 (v2022.01.01) |
| Jan 9, 2023 | 3.44% (0.03442) | 84.15th | v2 (v2022.01.01) |
| Jun 23, 2022 | 2.87% (0.02868) | 81.95th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.63% (0.02632) | 80.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 23.96% (0.23965) | 95.14th | v2 (v2022.01.01) |
| Feb 3, 2022 | 21.08% (0.21078) | 94.43th | v1 |
| Jan 6, 2022 | 21.08% (0.21078) | 94.37th | v1 |
| Sep 1, 2021 | 5.62% (0.05618) | 88.96th | v1 |
| Apr 14, 2021 | 5.62% (0.05618) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (1)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0865 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0865 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jul 15, 2019
Updated Aug 4, 2024
Reserved Nov 26, 2018
Link CVE-2019-0865
CISA Vulnrichment
Updated n/a