CVE-2026-58641
.NET Elevation of Privilege Vulnerability
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
.NET Elevation of Privilege Vulnerability
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- Record
CVE-2026-58641- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-190
- Updated
- 2026-11-02
EUVDEUVD-2026-56606
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- Record
EUVD-2026-56606- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-cmww-63fh-m29g
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges...
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- Record
GHSA-cmww-63fh-m29g- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
NVD
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- Record
CVE-2026-58641- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
OSVBELL-CVE-2026-58641
- Record
BELL-CVE-2026-58641- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBIT-dotnet-2026-58641 No score
.NET Elevation of Privilege Vulnerability
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- Record
BIT-dotnet-2026-58641- Updated
- 2026-11-02
OSVBIT-dotnet-sdk-2026-58641 No score
.NET Elevation of Privilege Vulnerability
Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.
- Record
BIT-dotnet-sdk-2026-58641- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
dotnet8-runtimeAlpaquita:25 |
8.0.17-r0 up to 8.0.31-r0 | 8.0.31-r0 |
dotnet8-runtimeAlpaquita:stream |
8.0.11-r1 up to 8.0.31-r0 | 8.0.31-r0 |
dotnetBitnami |
8.0.0 up to 8.0.30, 9.0.0 up to 9.0.19, 10.0.0 up to 10.0.11 | 8.0.309.0.1910.0.11 |
dotnet-sdkBitnami |
8.0.0 up to 8.0.30, 9.0.0 up to 9.0.19, 10.0.0 up to 10.0.11 | 8.0.309.0.1910.0.11 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-58641 is a high vulnerability (CVSS 7.8) in Microsoft .net, published August 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. Fixed in dotnet8-runtime 8.0.31-r0.