A denial of service vulnerability exists when SymCrypt improperly handles a specially…
Priority MEDIUM 40Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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'.
Why it matters now
EPSS 0.04502 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Windows | 10 Version 1703 for 32-bit Systems; 10 Version 1703 for x64-based Systems; 10 Version 1709 for 32-bit Systems; 10 Version 1709 for x64-based Systems; 10 Version 1803 for 32-bit Systems; 10 Version 1803 for x64-based Systems; 10 Version 1803 for ARM64-based Systems; 10 Version 1809 for 32-bit Systems; 10 Version 1809 for x64-based Systems; 10 Version 1809 for ARM64-based Systems; 10 Version 1709 for ARM64-based Systems | — | No fix listed | CNA |
| Microsoft | Windows Server | version 1803 (Core Installation); 2019; 2019 (Core installation) | — | No fix listed | CNA |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Windows Server, version 1903 (Server Core installation) | all versions | — | No fix listed | CNA |
- Windows VendorMicrosoft Affected 10 Version 1703 for 32-bit Systems; 10 Version 1703 for x64-based Systems; 10 Version 1709 for 32-bit Systems; 10 Version 1709 for x64-based Systems; 10 Version 1803 for 32-bit Systems; 10 Version 1803 for x64-based Systems; 10 Version 1803 for ARM64-based Systems; 10 Version 1809 for 32-bit Systems; 10 Version 1809 for x64-based Systems; 10 Version 1809 for ARM64-based Systems; 10 Version 1709 for ARM64-based Systems Fixed in — No fix listed CNA
- Windows Server VendorMicrosoft Affected version 1803 (Core Installation); 2019; 2019 (Core installation) Fixed in — No fix listed CNA
- Windows 10 Version 1903 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows 10 Version 1903 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows 10 Version 1903 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Windows Server, version 1903 (Server Core installation) VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* | 1703 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* | 1709 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* | 1803 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | 1809 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* | 1903 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* | 1803 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* | 1903 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* Versions 1703 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* Versions 1709 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* Versions 1803 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* Versions 1809 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* Versions 1903 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* Versions 1803 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* Versions 1903 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-0865
- 2026-10-03 Alias added: GHSA-q29g-c7pw-v72q
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Sources
- CVE-2019-0865 · CVE Program
- CVE-2019-0865 · NVD
- FIRST EPSS
- GHSA-q29g-c7pw-v72q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences