The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on 32-bit versions of Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703 does not properly scan a specially crafted file leading to memory corruption
Published Jun 29, 2017
7.8
HIGHCVSS 3.0
EPSS 43.59%
Description
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on 32-bit versions of Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703 does not properly scan a specially crafted file leading to memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability".
Affected products
-
- Version 32-bit versions only of Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016.StatusaffectedConstraints-
- 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 Corporation | Microsoft Malware Protection Engine | n/a |
|
Configuration 1
- n/a
Running on/with
- n/a
- 1511
- 1607
- 1703
- n/a
- n/a
- n/a
Configuration 2
- n/a
- n/a
- 2010
- n/a
- 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.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (29 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 43.59% (0.43588) | 98.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 43.59% (0.43588) | 98.57th | v5 (v2026.06.15) |
| Nov 21, 2025 | 57.85% (0.57846) | 98.06th | v4 (v2025.03.14) |
| Nov 18, 2025 | 49.69% (0.49693) | 97.67th | v4 (v2025.03.14) |
| Oct 19, 2025 | 57.85% (0.57846) | 98.05th | v4 (v2025.03.14) |
| Mar 30, 2025 | 56.06% (0.56058) | 97.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 69.71% (0.69714) | 98.17th | v4 (v2025.03.14) |
| Mar 21, 2025 | 56.06% (0.56058) | 97.93th | v4 (v2025.03.14) |
| Mar 17, 2025 | 52.71% (0.52712) | 97.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 7.48% (0.07480) | 94.38th | v3 (v2023.03.01) |
| Aug 21, 2024 | 7.48% (0.07480) | 94.23th | v3 (v2023.03.01) |
| Jun 1, 2024 | 8.61% (0.08605) | 94.50th | v3 (v2023.03.01) |
| Apr 19, 2024 | 7.04% (0.07042) | 93.88th | v3 (v2023.03.01) |
| Mar 11, 2024 | 5.88% (0.05876) | 93.23th | v3 (v2023.03.01) |
| Jan 31, 2024 | 5.67% (0.05671) | 92.60th | v3 (v2023.03.01) |
| Dec 24, 2023 | 5.28% (0.05280) | 92.29th | v3 (v2023.03.01) |
| Nov 14, 2023 | 6.21% (0.06213) | 92.80th | v3 (v2023.03.01) |
| Oct 3, 2023 | 4.92% (0.04920) | 91.86th | v3 (v2023.03.01) |
| Aug 25, 2023 | 4.53% (0.04528) | 91.45th | v3 (v2023.03.01) |
| Jul 15, 2023 | 4.44% (0.04441) | 91.31th | v3 (v2023.03.01) |
| Jun 9, 2023 | 3.54% (0.03535) | 90.23th | v3 (v2023.03.01) |
| May 9, 2023 | 2.17% (0.02165) | 87.65th | v3 (v2023.03.01) |
| Apr 14, 2023 | 1.60% (0.01602) | 85.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.41% (0.01406) | 84.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 56.40% (0.56398) | 98.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 56.40% (0.56398) | 98.48th | v2 (v2022.01.01) |
| Feb 3, 2022 | 53.97% (0.53966) | 99.10th | v1 |
| Sep 1, 2021 | 53.97% (0.53966) | 99.70th | v1 |
| Apr 14, 2021 | 53.97% (0.53966) | 0.00th | v1 |
References (5)
- http://www.securityfocus.com/bid/99262 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038783 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038784 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558 x_refsource_CONFIRMVendor Advisory
- https://www.exploit-db.com/exploits/42264/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/99262 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038783 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038784 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558 | x_refsource_CONFIRMVendor Advisory | |
| https://www.exploit-db.com/exploits/42264/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.