CRITICAL
A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka "Microsoft Exchange Memory Corruption Vulnerability." This affects Microsoft Exchange Server
Published Aug 15, 2018
9.8
CRITICALCVSS 3.0
EPSS 25.52%
Description
A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka "Microsoft Exchange Memory Corruption Vulnerability." This affects Microsoft Exchange Server.
Affected products
-
- Version 2010 Service Pack 3 Update Rollup 23StatusaffectedConstraints-
- Version 2013 Cumulative Update 20StatusaffectedConstraints-
- Version 2013 Cumulative Update 21StatusaffectedConstraints-
- Version 2016 Cumulative Update 10StatusaffectedConstraints-
- Version 2016 Cumulative Update 9StatusaffectedConstraints-
- 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 | n/a |
|
OR
- 2010
- 2013
- 2013
- 2016
- 2016
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.
9.8 CRITICAL NVD
CVSS:3.0/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
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
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.
25.52% 0.25519
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.25519
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 (50 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 25.52% (0.25519) | 97.89th | v5 (v2026.06.15) |
| Sep 22, 2026 | 25.52% (0.25519) | 97.86th | v5 (v2026.06.15) |
| Sep 21, 2026 | 23.15% (0.23146) | 97.71th | v5 (v2026.06.15) |
| Sep 6, 2026 | 25.52% (0.25519) | 97.81th | v5 (v2026.06.15) |
| Sep 5, 2026 | 23.15% (0.23146) | 97.66th | v5 (v2026.06.15) |
| Aug 30, 2026 | 25.52% (0.25519) | 97.80th | v5 (v2026.06.15) |
| Aug 28, 2026 | 23.15% (0.23146) | 97.64th | v5 (v2026.06.15) |
| Aug 24, 2026 | 25.52% (0.25519) | 97.79th | v5 (v2026.06.15) |
| Aug 23, 2026 | 23.15% (0.23146) | 97.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 25.52% (0.25519) | 97.68th | v5 (v2026.06.15) |
| May 15, 2026 | 38.41% (0.38412) | 97.28th | v4 (v2025.03.14) |
| May 7, 2026 | 36.37% (0.36372) | 97.14th | v4 (v2025.03.14) |
| Mar 1, 2026 | 35.15% (0.35151) | 96.97th | v4 (v2025.03.14) |
| Jan 31, 2026 | 42.71% (0.42711) | 97.37th | v4 (v2025.03.14) |
| Jan 3, 2026 | 43.99% (0.43990) | 97.43th | v4 (v2025.03.14) |
| Dec 7, 2025 | 37.31% (0.37309) | 97.00th | v4 (v2025.03.14) |
| Nov 21, 2025 | 26.60% (0.26599) | 96.13th | v4 (v2025.03.14) |
| Nov 18, 2025 | 18.46% (0.18465) | 94.77th | v4 (v2025.03.14) |
| Aug 9, 2025 | 25.90% (0.25903) | 96.04th | v4 (v2025.03.14) |
| Jul 30, 2025 | 16.43% (0.16426) | 94.60th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.73% (0.17733) | 94.58th | v4 (v2025.03.14) |
| Mar 29, 2025 | 52.20% (0.52195) | 96.97th | v4 (v2025.03.14) |
| Mar 17, 2025 | 17.73% (0.17733) | 94.61th | v4 (v2025.03.14) |
| Feb 8, 2025 | 27.86% (0.27864) | 96.87th | v3 (v2023.03.01) |
| Dec 17, 2024 | 34.84% (0.34835) | 97.13th | v3 (v2023.03.01) |
| Nov 18, 2024 | 30.13% (0.30130) | 97.05th | v3 (v2023.03.01) |
| Oct 10, 2024 | 38.36% (0.38358) | 97.28th | v3 (v2023.03.01) |
| Jul 25, 2024 | 54.76% (0.54761) | 97.69th | v3 (v2023.03.01) |
| Jun 24, 2024 | 44.01% (0.44012) | 97.40th | v3 (v2023.03.01) |
| Apr 30, 2024 | 38.33% (0.38328) | 97.19th | v3 (v2023.03.01) |
| Apr 3, 2024 | 31.04% (0.31044) | 96.88th | v3 (v2023.03.01) |
| Feb 15, 2024 | 14.27% (0.14270) | 95.52th | v3 (v2023.03.01) |
| Jan 27, 2024 | 13.64% (0.13642) | 95.13th | v3 (v2023.03.01) |
| Jan 6, 2024 | 13.33% (0.13335) | 95.05th | v3 (v2023.03.01) |
| Aug 9, 2023 | 14.70% (0.14703) | 95.04th | v3 (v2023.03.01) |
| Mar 11, 2023 | 14.60% (0.14603) | 94.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 21.18% (0.21180) | 95.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 34.60% (0.34599) | 97.77th | v2 (v2022.01.01) |
| Dec 6, 2022 | 34.60% (0.34599) | 97.73th | v2 (v2022.01.01) |
| Sep 15, 2022 | 32.42% (0.32419) | 97.53th | v2 (v2022.01.01) |
| Aug 1, 2022 | 31.10% (0.31104) | 97.48th | v2 (v2022.01.01) |
| Jun 28, 2022 | 27.14% (0.27139) | 97.06th | v2 (v2022.01.01) |
| May 22, 2022 | 23.10% (0.23099) | 96.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 21.36% (0.21361) | 96.28th | v2 (v2022.01.01) |
| Feb 9, 2022 | 21.36% (0.21361) | 94.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.27% (0.17269) | 93.17th | v2 (v2022.01.01) |
| Feb 3, 2022 | 14.80% (0.14798) | 89.93th | v1 |
| Jan 6, 2022 | 14.80% (0.14798) | 89.81th | v1 |
| Sep 1, 2021 | 14.80% (0.14798) | 97.21th | v1 |
| Apr 14, 2021 | 14.80% (0.14798) | 0.00th | v1 |
Weaknesses (1)
References (3)
- http://www.securityfocus.com/bid/104973 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041468 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8302 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104973 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041468 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8302 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Aug 15, 2018
Updated Aug 5, 2024
Reserved Mar 14, 2018
Link CVE-2018-8302
CISA Vulnrichment
Updated n/a