Core: Arbitrary file and directory creation
Published Nov 14, 2018
6.5
MEDIUMCVSS 3.0
EPSS 7.26%
Description
A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka ".NET Core Tampering Vulnerability." This affects .NET Core 2.1.
Affected products
-
- Version 2.1StatusaffectedConstraints-
- 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 | n/a | n/a |
|
- 2.1
No data.
.NET Core on Red Hat Enterprise Linux
rh-dotnet21-dotnet-0:2.1.500-5.el7
Fixed · RHSA-2018:3676
.NET Core 1.0 on Red Hat Enterprise Linux
rh-dotnetcore10-dotnetcore
Not affected
.NET Core 1.1 on Red Hat Enterprise Linux
rh-dotnetcore11-dotnetcore
Not affected
.NET Core 2.0 on Red Hat Enterprise Linux
rh-dotnet20-dotnet
Not affected
Red Hat Enterprise Linux 8
dotnet
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| .NET Core on Red Hat Enterprise Linux | rh-dotnet21-dotnet-0:2.1.500-5.el7 | Fixed | RHSA-2018:3676 |
| .NET Core 1.0 on Red Hat Enterprise Linux | rh-dotnetcore10-dotnetcore | Not affected | n/a |
| .NET Core 1.1 on Red Hat Enterprise Linux | rh-dotnetcore11-dotnetcore | Not affected | n/a |
| .NET Core 2.0 on Red Hat Enterprise Linux | rh-dotnet20-dotnet | Not affected | n/a |
| Red Hat Enterprise Linux 8 | dotnet | Not affected | n/a |
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:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
AV:N/AC:L/Au:S/C:N/I:P/A:N
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 (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.26% (0.07258) | 94.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.26% (0.07258) | 93.52th | v5 (v2026.06.15) |
| Apr 4, 2026 | 11.33% (0.11328) | 93.52th | v4 (v2025.03.14) |
| Mar 8, 2026 | 8.67% (0.08670) | 92.32th | v4 (v2025.03.14) |
| Nov 16, 2025 | 6.58% (0.06577) | 90.75th | v4 (v2025.03.14) |
| Nov 8, 2025 | 3.39% (0.03386) | 86.89th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.98% (0.01981) | 81.96th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.81% (0.06808) | 85.17th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.98% (0.01981) | 82.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00138) | 50.90th | v3 (v2023.03.01) |
| Jul 3, 2024 | 0.18% (0.00184) | 55.89th | v3 (v2023.03.01) |
| Apr 6, 2024 | 0.26% (0.00263) | 65.51th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00283) | 67.70th | v3 (v2023.03.01) |
| Nov 7, 2023 | 0.28% (0.00283) | 65.15th | v3 (v2023.03.01) |
| Oct 23, 2023 | 0.27% (0.00268) | 64.02th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.26% (0.00261) | 62.70th | v3 (v2023.03.01) |
| Apr 11, 2023 | 0.15% (0.00149) | 49.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00157) | 50.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.08% (0.02084) | 79.92th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.08% (0.02084) | 78.00th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.08% (0.02084) | 56.70th | v2 (v2022.01.01) |
| Feb 3, 2022 | 10.73% (0.10726) | 87.87th | v1 |
| Jan 6, 2022 | 10.73% (0.10726) | 87.73th | v1 |
| Sep 1, 2021 | 10.73% (0.10726) | 95.25th | v1 |
| Apr 14, 2021 | 10.73% (0.10726) | 0.00th | v1 |
No CWE recorded.
References (11)
- http://www.securityfocus.com/bid/105798 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042128 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:3676 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-8416 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1649693 Issue Tracking
- https://github.com/advisories/GHSA-5633-f33j-c6f7 Advisory
- https://github.com/dotnet/announcements/issues/95
- https://github.com/github/advisory-database/issues/302
- https://nvd.nist.gov/vuln/detail/CVE-2018-8416
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8416 x_refsource_CONFIRMPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-8416
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105798 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1042128 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2018:3676 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-8416 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1649693 | Issue Tracking | |
| https://github.com/advisories/GHSA-5633-f33j-c6f7 | Advisory | |
| https://github.com/dotnet/announcements/issues/95 | ||
| https://github.com/github/advisory-database/issues/302 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-8416 | ||
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8416 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-8416 |
Change history (0)
No recorded changes yet.