CVE-2026-69806
published 2026-09-08CVE-2026-69806: Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
PriorityP337high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
EPSS
0.76%
54.7th percentile
Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | microsoft_visual_studio_2022_version_17.14 | >= 17.14.0 < 17.14.40 | 17.14.40 |
| microsoft | microsoft_visual_studio_2026_version_18.9 | >= 18.9.0 < 18.9.3 | 18.9.3 |
| microsoft | net | — | — |
| microsoft | net | — | — |
| microsoft | net | — | — |
| microsoft | net | — | — |
| microsoft | net | — | — |
| microsoft | net | — | — |
| microsoft | net | >= 10.0.0 < 10.0.12 | 10.0.12 |
| microsoft | net | >= 9.0.0 < 9.0.20 | 9.0.20 |
| microsoft | net_10.0 | >= 10.0.0 < 10.0.12 | 10.0.12 |
| microsoft | net_11.0 | >= 11.0.0 < 11.0 RC1 | 11.0 RC1 |
| microsoft | net_9.0 | >= 9.0.0 < 9.0.20 | 9.0.20 |
| microsoft | visual_studio_2022 | >= 17.14.0 < 17.14.40 | 17.14.40 |
| microsoft | visual_studio_2026 | >= 18.9.0 < 18.9.3 | 18.9.3 |
| ubuntu | dotnet10 | — | — |
| ubuntu | dotnet8 | — | — |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_redhat7.0HIGH
vendor_ubuntu6.5MEDIUM
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Ubuntu
.NET vulnerabilities
vendor_ubuntu·2026-09-10·CVSS 6.5
CVE-2026-58649 [MEDIUM] .NET vulnerabilities
Title: .NET vulnerabilities
Summary: Several security issues were fixed in .NET.
Weeraphat Srisutham discovered that the .NET watch BrowserRefreshServer did
not properly validate cross-origin WebSocket connections. An attacker could
possibly use this issue to expose sensitive information. (CVE-2026-58649)
Rajesh Chada discovered that the .NET watch AspireServerService improperly
exposed information through the use of certain arguments. An attacker could
possibly use this issue to elevate privileges and execute arbitrary code.
(CVE-2026-69806)
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability
vendor_redhat·2026-09-08·CVSS 7.0
CVE-2026-69806 [HIGH] CWE-200 dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability
dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability
dotnet-watch AspireServerService exposes information through procfs arguments that can enable injection into the /run_session endpoint.
Package: dotnet10.0 (Red Hat Enterprise Linux 10) - Affected
Package: dotnet9.0 (Red Hat Enterprise Linux 10) - Affected
Package: dotnet10.0 (Red Hat Enterprise Linux 8) - Affected
Package: dotnet9.0 (Red Hat Enterprise Linux 8) - Affected
Package: dotnet10.0 (Red Hat Enterprise Linux 9) - Affected
Package: dotnet9.0 (Red Hat Enterprise Linux 9) - Affected
Package: dotnet10.0 (Red Hat Hardened Images) - Affected
Package: dotnet9.0 (Red Hat Hardened Images) - Affected
GHSA
Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
ghsa_unreviewed·2026-09-08
CVE-2026-69806 [HIGH] CWE-94 Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-69806 dotnet10.0: .NET Elevation of Privilege Vulnerability [fedora-all]
bugzilla·2026-09-09·CVSS 7.0
CVE-2026-69806 [HIGH] CVE-2026-69806 dotnet10.0: .NET Elevation of Privilege Vulnerability [fedora-all]
CVE-2026-69806 dotnet10.0: .NET Elevation of Privilege Vulnerability [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
dotnet-watch AspireServerService exposes information through procfs arguments that can enable injection into the /run_session endpoint.
CNA: microsoft
CNA impact: Elevation of Privilege
CWE: CWE-200, CWE-94
Platforms: linux
Architectures: all
CVSS 3.1: 7.0 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Affected packages:
- dotnet-sdk (release 10.0): 10.0.100 - 10.0.111; fixed 10.0.112 [dotnet@882ef16]
- dotnet-sdk (release 9.0): 9.0.300 - 9.0.317; fixed 9.0.318 [sdk@d78666e]
- dotnet-s
Bugzilla
CVE-2026-69806 dotnet9.0: .NET Elevation of Privilege Vulnerability [fedora-all]
bugzilla·2026-09-09·CVSS 7.0
CVE-2026-69806 [HIGH] CVE-2026-69806 dotnet9.0: .NET Elevation of Privilege Vulnerability [fedora-all]
CVE-2026-69806 dotnet9.0: .NET Elevation of Privilege Vulnerability [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
dotnet-watch AspireServerService exposes information through procfs arguments that can enable injection into the /run_session endpoint.
CNA: microsoft
CNA impact: Elevation of Privilege
CWE: CWE-200, CWE-94
Platforms: linux
Architectures: all
CVSS 3.1: 7.0 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Affected packages:
- dotnet-sdk (release 10.0): 10.0.100 - 10.0.111; fixed 10.0.112 [dotnet@882ef16]
- dotnet-sdk (release 9.0): 9.0.300 - 9.0.317; fixed 9.0.318 [sdk@d78666e]
- dotnet-sd
Bugzilla
CVE-2026-69806 dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability
bugzilla·2026-09-04·CVSS 7.0
CVE-2026-69806 [HIGH] CVE-2026-69806 dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability
CVE-2026-69806 dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability
dotnet-watch AspireServerService exposes information through procfs arguments that can enable injection into the /run_session endpoint.
CNA: microsoft
CNA impact: Elevation of Privilege
CWE: CWE-200, CWE-94
Platforms: linux
Architectures: all
CVSS 3.1: 7.0 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Affected packages:
- dotnet-sdk (release 10.0): 10.0.100 - 10.0.111; fixed 10.0.112 [dotnet@882ef16]
- dotnet-sdk (release 9.0): 9.0.300 - 9.0.317; fixed 9.0.318 [sdk@d78666e]
- dotnet-sdk (release 10.0): 10.0.400 - 10.0.400; fixed 10.0.401 [dotnet@ae39133]
Fix commits:
- dotnet/dotnet (release/10.0.1xx): https://github.com/dotnet/dotnet/commit/882ef164b92836bf0cabcf8eb8719274e9dc075e
- dotnet/sdk (release/9.
Sans Isc
September 2026 Microsoft Patch Tuesday, (Tue, Sep 8th)
blogs_sans_isc·2026-09-08·CVSS 7.8
CVE-2026-81963 [HIGH] September 2026 Microsoft Patch Tuesday, (Tue, Sep 8th)
September 2026 Microsoft Patch Tuesday
Published: 2026-09-08. Last Updated: 2026-09-08 19:20:30 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This month, Microsoft released patches for a record-breaking 973 vulnerabilities, including 113 rated critical. It is by far the largest Patch Tuesday to date, well ahead of the previous high of 664 set in July 2026. Two vulnerabilities are listed as exploited in the wild, while none were publicly disclosed before Patch Tuesday. Notable fixes include Windows privilege escalation and critical RCEs in Skype for Business, MSMQ and RRAS.
A few vulnerabilities worth mentioning:
Windows Update Stack Elevation of Privilege Vulnerability (CVE-2026-81963)
Microsoft reports that CVE-2026-81963 is being exploited, though it was not publicly disclosed b
Rapid7
Patch Tuesday - September 2026
blogs_rapid7·2026-09-08·CVSS 7.8
CVE-2026-85880 [HIGH] Patch Tuesday - September 2026
Microsoft is publishing 974 own-product vulnerabilities on September 2026 Patch Tuesday , including 723 vulnerabilities in Windows. Along with Microsoft fixes for 25 non-Microsoft CVEs, that brings the total number of vulnerabilities on the table today to 999. Whether this is the biggest Patch Tuesday ever depends on how we count, but this is by far the most CVEs that Microsoft has ever published in a single day. As Rapid7 noted last month, there is no reason to suppose that Patch Tuesday will ever return to the lower volumes we saw prior to 2026. Microsoft is aware of exploitation in the wild for two of the vulnerabilities published today.
## Windows ALPC: zero-day EoP
The eternal game of elevation of privilege whack-a-mole between Microsoft and attackers continues. This month, the batt
2026-09-08
Published