HIGH
A remote code execution vulnerability exists in Microsoft Outlook software when it fails to properly handle objects in memory, aka "Microsoft Outlook Remote Code Execution Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Outlook
Published Dec 12, 2018
7.8
HIGHCVSS 3.0
EPSS 28.78%
Description
A remote code execution vulnerability exists in Microsoft Outlook software when it fails to properly handle objects in memory, aka "Microsoft Outlook Remote Code Execution Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Outlook.
Affected products
-
- Version 2019 for 32-bit editionsStatusaffectedConstraints-
- Version 2019 for 64-bit editionsStatusaffectedConstraints-
- Version
-
- Version 2010 Service Pack 2 (32-bit editions)StatusaffectedConstraints-
- Version 2010 Service Pack 2 (64-bit editions)StatusaffectedConstraints-
- Version 2013 RT Service Pack 1StatusaffectedConstraints-
- Version 2013 Service Pack 1 (32-bit editions)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (64-bit editions)StatusaffectedConstraints-
- Version 2016 (32-bit edition)StatusaffectedConstraints-
- Version 2016 (64-bit edition)StatusaffectedConstraints-
- Version
-
- Version 365 ProPlus for 32-bit SystemsStatusaffectedConstraints-
- Version 365 ProPlus for 64-bit SystemsStatusaffectedConstraints-
- 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 Office | n/a |
| ||||||||||||||||||||||||
| Microsoft | Microsoft Outlook | n/a |
| ||||||||||||||||||||||||
| Microsoft | Office | 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.
7.8 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
9.3 HIGH NVD
AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
28.78% 0.28782
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.28782
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 (48 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 28.78% (0.28782) | 98.09th | v5 (v2026.06.15) |
| Sep 22, 2026 | 28.78% (0.28782) | 98.06th | v5 (v2026.06.15) |
| Sep 21, 2026 | 30.49% (0.30491) | 98.20th | v5 (v2026.06.15) |
| Sep 6, 2026 | 28.78% (0.28782) | 98.02th | v5 (v2026.06.15) |
| Sep 5, 2026 | 30.49% (0.30491) | 98.16th | v5 (v2026.06.15) |
| Aug 30, 2026 | 28.78% (0.28782) | 98.01th | v5 (v2026.06.15) |
| Aug 28, 2026 | 30.49% (0.30491) | 98.14th | v5 (v2026.06.15) |
| Aug 24, 2026 | 28.78% (0.28782) | 97.99th | v5 (v2026.06.15) |
| Aug 23, 2026 | 30.49% (0.30491) | 98.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 28.78% (0.28782) | 97.89th | v5 (v2026.06.15) |
| May 30, 2026 | 43.47% (0.43473) | 97.57th | v4 (v2025.03.14) |
| Nov 21, 2025 | 46.76% (0.46758) | 97.52th | v4 (v2025.03.14) |
| Nov 18, 2025 | 56.67% (0.56673) | 98.05th | v4 (v2025.03.14) |
| Jun 11, 2025 | 46.57% (0.46569) | 97.50th | v4 (v2025.03.14) |
| Mar 30, 2025 | 53.55% (0.53546) | 97.76th | v4 (v2025.03.14) |
| Mar 29, 2025 | 54.83% (0.54831) | 97.16th | v4 (v2025.03.14) |
| Mar 28, 2025 | 53.55% (0.53546) | 97.76th | v4 (v2025.03.14) |
| Mar 27, 2025 | 54.83% (0.54831) | 97.71th | v4 (v2025.03.14) |
| Mar 20, 2025 | 53.55% (0.53546) | 97.79th | v4 (v2025.03.14) |
| Mar 19, 2025 | 54.83% (0.54831) | 97.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 53.55% (0.53546) | 97.72th | v4 (v2025.03.14) |
| Dec 17, 2024 | 4.43% (0.04426) | 92.31th | v3 (v2023.03.01) |
| Nov 21, 2024 | 13.79% (0.13790) | 95.83th | v3 (v2023.03.01) |
| Oct 21, 2024 | 7.10% (0.07102) | 94.15th | v3 (v2023.03.01) |
| May 25, 2024 | 3.93% (0.03929) | 91.99th | v3 (v2023.03.01) |
| May 4, 2024 | 2.76% (0.02759) | 90.52th | v3 (v2023.03.01) |
| Mar 22, 2024 | 2.40% (0.02398) | 89.65th | v3 (v2023.03.01) |
| Sep 11, 2023 | 2.26% (0.02256) | 88.20th | v3 (v2023.03.01) |
| Aug 28, 2023 | 2.74% (0.02743) | 89.21th | v3 (v2023.03.01) |
| Aug 8, 2023 | 2.67% (0.02673) | 89.04th | v3 (v2023.03.01) |
| Jul 27, 2023 | 3.74% (0.03740) | 90.56th | v3 (v2023.03.01) |
| Jul 7, 2023 | 3.22% (0.03219) | 89.83th | v3 (v2023.03.01) |
| Jun 24, 2023 | 4.98% (0.04978) | 91.67th | v3 (v2023.03.01) |
| May 24, 2023 | 2.55% (0.02554) | 88.64th | v3 (v2023.03.01) |
| May 9, 2023 | 3.21% (0.03215) | 89.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.41% (0.04408) | 91.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.83% (0.12826) | 95.62th | v2 (v2022.01.01) |
| Jan 11, 2023 | 12.83% (0.12826) | 95.42th | v2 (v2022.01.01) |
| Nov 27, 2022 | 12.16% (0.12163) | 95.08th | v2 (v2022.01.01) |
| Oct 24, 2022 | 10.25% (0.10253) | 94.45th | v2 (v2022.01.01) |
| Sep 17, 2022 | 8.00% (0.07999) | 93.05th | v2 (v2022.01.01) |
| Jun 7, 2022 | 7.29% (0.07289) | 91.84th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.70% (0.05698) | 89.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.70% (0.05698) | 76.91th | v2 (v2022.01.01) |
| Feb 3, 2022 | 13.74% (0.13741) | 89.37th | v1 |
| Jan 6, 2022 | 13.74% (0.13741) | 89.25th | v1 |
| Sep 1, 2021 | 13.74% (0.13741) | 96.74th | v1 |
| Apr 14, 2021 | 13.74% (0.13741) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (2)
- http://www.securityfocus.com/bid/106097 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8587 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106097 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8587 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Dec 12, 2018
Updated Aug 5, 2024
Reserved Mar 14, 2018
Link CVE-2018-8587
CISA Vulnrichment
Updated n/a