Vulnerability · Published Oct 10, 2023 · Assigned by microsoft
CVE-2023-36435Microsoft QUIC Denial of Service Vulnerability
High 7.5
In plain English
A high-severity uncontrolled resource consumption in .NET 7.0 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.7% (higher than 93% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)5.7%top 6.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Microsoft QUIC Denial of Service Vulnerability
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| NuGet | microsoft.native.quic.msquic.openssl | 2.2.3 | GHSA-fr44-546p-7xcp |
| NuGet | microsoft.native.quic.msquic.schannel | 2.2.3 | GHSA-fr44-546p-7xcp |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | PowerShell 7.3 | 7.3.0 – before 7.3.9 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.2031 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – before 10.0.22000.2538 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.2428 |
| Microsoft | .NET 7.0 | 7.0.0 – before 7.0.13 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
References
- Microsoft QUIC Denial of Service Vulnerability vendor-advisory