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CVE-2026-40372VulnerabilityPublished Updated

Bundesamt für Sicherheit in der Informationstechnik Fedora · Microsoft ASP.NET: Schwachstelle ermöglicht Privilegieneskalation

Affects Bundesamt für Sicherheit in der Informationstechnik FedoraSource GCVE Database

0
Authoritative record:CVE-2026-40372· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical · fixed in Fedora package updates : patch Bundesamt für Sicherheit in der Informationstechnik Fedora as a priority.

Data as of 27 Oct 2026, 01:06 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 10.0.7, 18.5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade ASP.NET Core 10.0 to 10.0.7; Microsoft Visual Studio 2026 version 18.5 to 18.5.2.

Affected software

ProductAffectedFixed in
MicrosoftASP.NET Core 10.0Affected
  • >=10.0 <10.0.7
Fixed in
  • 10.0.7
MicrosoftMicrosoft Visual Studio 2026 version 18.5Affected
  • >=18.5.0 <18.5.2
Fixed in
  • 18.5.2

AI-suggested

Upgrade Microsoft ASP.NET to version 10.0.7 or later to remediate this vulnerability. Since a fix is available, applying this update is the recommended mitigation.

Description

A vulnerability in Microsoft ASP.NET allows privilege escalation. This affects versions prior to 10.0.7. The issue has been fixed in version 10.0.7. No public exploit or CVSS score is currently available.

References

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