CRITICAL
A remote code execution vulnerability exists in Microsoft Exchange through the deserialization of metadata via PowerShell, aka 'Microsoft Exchange Remote Code Execution Vulnerability'
Published Nov 12, 2019
9.8
CRITICALCVSS 3.1
EPSS 21.68%
Description
A remote code execution vulnerability exists in Microsoft Exchange through the deserialization of metadata via PowerShell, aka 'Microsoft Exchange Remote Code Execution Vulnerability'.
Affected products
-
- Version Cumulative Update 23StatusaffectedConstraints-
- Version
-
- Version Cumulative Update 13StatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version Cumulative Update 2StatusaffectedConstraints-
- 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 | Microsoft Exchange Server 2013 | n/a |
| ||||||
| Microsoft | Microsoft Exchange Server 2016 | n/a |
| ||||||
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 14 | n/a |
| ||||||
| Microsoft | Microsoft Exchange Server 2019 | n/a |
| ||||||
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 3 | n/a |
|
OR
- 2013
- 2016
- 2016
- 2019
- 2019
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.
21.68% 0.21676
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.21676
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 (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 21.68% (0.21676) | 97.56th | v5 (v2026.06.15) |
| Sep 3, 2026 | 21.43% (0.21426) | 97.44th | v5 (v2026.06.15) |
| Aug 30, 2026 | 20.10% (0.20097) | 97.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 18.16% (0.18161) | 96.83th | v5 (v2026.06.15) |
| Jan 15, 2026 | 9.62% (0.09619) | 92.64th | v4 (v2025.03.14) |
| Nov 21, 2025 | 12.50% (0.12497) | 93.64th | v4 (v2025.03.14) |
| Nov 18, 2025 | 25.87% (0.25875) | 95.94th | v4 (v2025.03.14) |
| Mar 30, 2025 | 12.50% (0.12497) | 93.31th | v4 (v2025.03.14) |
| Mar 29, 2025 | 45.95% (0.45955) | 96.50th | v4 (v2025.03.14) |
| Mar 21, 2025 | 12.50% (0.12497) | 93.38th | v4 (v2025.03.14) |
| Mar 17, 2025 | 25.87% (0.25875) | 95.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.52% (0.04515) | 92.78th | v3 (v2023.03.01) |
| Mar 25, 2024 | 4.52% (0.04515) | 92.28th | v3 (v2023.03.01) |
| Dec 22, 2023 | 3.72% (0.03715) | 90.85th | v3 (v2023.03.01) |
| Sep 1, 2023 | 3.00% (0.02996) | 89.62th | v3 (v2023.03.01) |
| Mar 17, 2023 | 3.02% (0.03020) | 89.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.37% (0.03370) | 89.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.22% (0.02217) | 81.23th | v2 (v2022.01.01) |
| Oct 21, 2022 | 2.22% (0.02217) | 80.65th | v2 (v2022.01.01) |
| Jul 6, 2022 | 2.03% (0.02034) | 78.06th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.88% (0.01875) | 75.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 37.71% (0.37706) | 97.20th | v2 (v2022.01.01) |
| Feb 3, 2022 | 32.21% (0.32208) | 97.60th | v1 |
| Jan 6, 2022 | 32.21% (0.32208) | 97.57th | v1 |
| Sep 1, 2021 | 9.57% (0.09575) | 94.86th | v1 |
| Apr 14, 2021 | 9.57% (0.09575) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1373 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1373 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Nov 12, 2019
Updated Aug 4, 2024
Reserved Nov 26, 2018
Link CVE-2019-1373
CISA Vulnrichment
Updated n/a