CVE-2026-120796: Microsoft .NET 11.0 installed on Linux · Inefficient Algorithmic Complexity
Affects Microsoft .NET 11.0 installed on LinuxSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 11.0.0 when convenient.
Data as of 10 Nov 2026, 18:50 UTC
Thin evidence
One scorer or none| CNA (microsoft) | CVSS 3.1 | 5.3 |
|---|
- Patch
- Available – fixed in 11.0.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade .NET 11.0 installed to 11.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft.NET 11.0 installed on Linux | Affected
| Fixed in
|
| Microsoft.NET 11.0 installed on Mac OS | Affected
| Fixed in
|
| Microsoft.NET 11.0 installed on Windows | Affected
| Fixed in
|
| MicrosoftSystem.Text.Json | Affected
| Fixed in– |
Description
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.