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VulnerabilityPublished Updated

CVE-2026-105544: dotnet8, dotnet10, dotnet11 vulnerabilities

Affects dotnet8Source GCVE Database

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Authoritative record:CVE-2026-105544· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 8.0.134-8.0.34-0ubuntu1~22.04.1 : patch dotnet8 soon.

Data as of 13 Nov 2026, 23:53 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (microsoft)CVSS 3.17.5
EPSS
0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 8.0.134-8.0.34-0ubuntu1~22.04.1, 10.0.115-10.0.15-0ubuntu1~24.04.1, 8.0.134-8.0.34-0ubuntu1~24.04.1 +3
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 13 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.10dotnet10pkg:deb/ubuntu/dotnet10?arch=source&distro=stonkingOther threatsAffected
  • <10.0.115-10.0.15-0ubuntu1~26.10.1
Fixed in
  • 10.0.115-10.0.15-0ubuntu1~26.10.1
Ubuntu 26.10dotnet11pkg:deb/ubuntu/dotnet11?arch=source&distro=stonkingOther threatsAffected
  • <11.0.100-11.0.0-0ubuntu1~26.10.1
  • =11.0.100-11.0.0~rc1-0ubuntu1
  • =11.0.100-11.0.0~rc2-0ubuntu1~26.10.1
  • =11.0.100-11.0.0~rc3-0ubuntu1~26.10.1
Fixed in
  • 11.0.100-11.0.0-0ubuntu1~26.10.1
Ubuntu 26.04 LTSdotnet10pkg:deb/ubuntu/dotnet10?arch=source&distro=resoluteOther threatsAffected
  • <10.0.115-10.0.15-0ubuntu1~26.04.1
Fixed in
  • 10.0.115-10.0.15-0ubuntu1~26.04.1
Ubuntu 24.04 LTSdotnet10pkg:deb/ubuntu/dotnet10?arch=source&distro=nobleOther threatsAffected
  • <10.0.115-10.0.15-0ubuntu1~24.04.1
Fixed in
  • 10.0.115-10.0.15-0ubuntu1~24.04.1
Ubuntu 24.04 LTSdotnet8pkg:deb/ubuntu/dotnet8?arch=source&distro=nobleOther threatsAffected
  • <8.0.134-8.0.34-0ubuntu1~24.04.1
Fixed in
  • 8.0.134-8.0.34-0ubuntu1~24.04.1
Ubuntu 22.04 LTSdotnet8pkg:deb/ubuntu/dotnet8?arch=source&distro=jammyOther threatsAffected
  • <8.0.134-8.0.34-0ubuntu1~22.04.1
Fixed in
  • 8.0.134-8.0.34-0ubuntu1~22.04.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied by updating the .NET packages to the fixed versions listed in the Ubuntu security notice USN-9042-1. Standard system updates on the affected Ubuntu releases will install these fixes. Users should ensure their systems are updated to the specified package versions to mitigate the vulnerabilities.

Description

Multiple security issues were discovered in .NET affecting versions of dotnet8, dotnet10, and dotnet11 on Ubuntu. These issues have been addressed by updating to newer upstream .NET versions. The updates include security fixes, bug fixes, new features, and possibly incompatible changes. The fixed versions are available for Ubuntu 22.04 LTS, 24.04 LTS, 26.04 LTS, and 26.10 releases.

References

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