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VulnerabilityPublished Updated

CVE-2025-10263: linux-azure-fde, linux-azure-fde-7.0 vulnerabilities

Affects Linux kernelSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2025-10263· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical · fixed in 7.0.0-1013.13~24.04.1 : patch Linux kernel as a priority.

Data as of 6 Nov 2026, 14:53 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 7.0.0-1013.13~24.04.1, 7.0.0-1013.13
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Jun 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 6 Nov 2026.

What to do

Upgrade the Ubuntu to 7.0.0-1013.13~24.04.1 (linux-azure-fde-7.0 package) or 7.0.0-1013.13 (linux-azure-fde package).

Affected software

ProductAffectedFixed in
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threatsAffected
  • <7.0.0-1013.13
Fixed in
  • 7.0.0-1013.13
Ubuntu 24.04 LTSlinux-azure-fde-7.0pkg:deb/ubuntu/linux-azure-fde-7.0?arch=source&distro=nobleOther threatsAffected
  • <7.0.0-1013.13~24.04.1
Fixed in
  • 7.0.0-1013.13~24.04.1

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 immediately by updating to linux-azure-fde-7.0 package versions 7.0.0-1013.13~24.04.1 or 7.0.0-1013.13 as appropriate for the Ubuntu release. After updating, a system reboot is required to activate the fixes. Due to an unavoidable ABI change, all third-party kernel modules must be recompiled and reinstalled to ensure compatibility with the updated kernel. Follow the vendor advisory at https://ubuntu.com/security/notices/USN-8801-1 for detailed update instructions.

Description

A set of vulnerabilities affecting the Linux kernel for Microsoft Azure CVM cloud systems, including a critical issue (CVE-2025-10263) on some Arm processors where a local attacker could write to memory after permission revocation due to premature TLB invalidation. Additional flaws affect character device drivers, networking core, IPv6 networking, and Unix domain sockets. These vulnerabilities could allow local attackers to bypass memory protections or escalate privileges. Fixes are available in updated kernel versions and require a system reboot and recompilation of third-party kernel modules due to ABI changes.

References

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