A DCOM object in Helppane.exe in 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, 1703, and Windows Server 2016, when configured to run as the interactive user, allows an authenticated attacker to run arbitrary code in another user's session, aka "Windows COM Session Elevation of Privilege Vulnerability."
Published Jun 15, 2017
7.3
HIGHCVSS 3.0
EPSS 1.90%
Description
A DCOM object in Helppane.exe in 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, 1703, and Windows Server 2016, when configured to run as the interactive user, allows an authenticated attacker to run arbitrary code in another user's session, aka "Windows COM Session Elevation of Privilege Vulnerability."
Affected products
-
- Version Microsoft Windows Server 2008 R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016StatusaffectedConstraints-
- 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 | Windows COM | n/a |
|
- n/a
- 1511
- 1607
- 1703
- n/a
- n/a
- rt
- n/a
- r2
- n/a
- r2
- 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:R/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:P/I:P/A:P
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 (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.90% (0.01898) | 78.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.90% (0.01898) | 76.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.57% (0.00574) | 66.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00083) | 37.05th | v3 (v2023.03.01) |
| Feb 26, 2024 | 0.08% (0.00085) | 34.52th | v3 (v2023.03.01) |
| Jan 16, 2024 | 0.10% (0.00102) | 41.21th | v3 (v2023.03.01) |
| Dec 9, 2023 | 0.09% (0.00089) | 37.21th | v3 (v2023.03.01) |
| Sep 18, 2023 | 0.08% (0.00084) | 34.84th | v3 (v2023.03.01) |
| Apr 24, 2023 | 0.10% (0.00104) | 41.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00073) | 29.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01410) | 72.96th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01410) | 72.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01410) | 70.94th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01410) | 50.00th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.70% (0.06701) | 83.28th | v1 |
| Jan 6, 2022 | 6.70% (0.06701) | 83.12th | v1 |
| Sep 1, 2021 | 6.70% (0.06701) | 91.08th | v1 |
| Apr 14, 2021 | 6.70% (0.06701) | 0.00th | v1 |
No CWE recorded.
References (2)
- http://www.securityfocus.com/bid/98841 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0298 x_refsource_CONFIRMMitigationPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/98841 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0298 | x_refsource_CONFIRMMitigationPatchVendor Advisory |
Change history (0)
No recorded changes yet.