linux, linux-aws, linux-azure, linux-azure-6.17, linux-hwe-6.17, linux-nvidia-6.17, linux-oem-6.17, linux-oracle
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.5 High · fixed in 6.17.0-1017.17~24.04.1 : patch Linux kernel soon.
Data as of 5 Nov 2026, 00:01 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.17.0-1017.17~24.04.1, 6.17.0-35.35~24.04.1, 6.17.0-1021.21 +8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Apr 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 4 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linuxpkg:deb/ubuntu/linux?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-raspipkg:deb/ubuntu/linux-raspi?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-realtimepkg:deb/ubuntu/linux-realtime?arch=source&distro=questingOther threats | Affected
| Fixed in
|
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 promptly. Ubuntu has released updated Linux kernel packages that fix these vulnerabilities. Users should update to the fixed versions listed in the vendor advisory and reboot their systems to apply the changes. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be required. The vendor advisory (https://ubuntu.com/security/notices/USN-8371-1) provides detailed update instructions.
Description
Multiple security vulnerabilities were discovered in the Linux kernel affecting various subsystems including socket buffer handling, XFRM ESP-in-TCP, RxRPC networking, ptrace, and AppArmor notifications. These flaws could allow local attackers to escalate privileges, escape containers, cause resource exhaustion, kernel crashes, memory corruption, information disclosure, or denial of service. The issues affect Ubuntu Linux kernel versions 6.8, 6.17, and 7.0, among others. Fixes have been released in updated kernel versions.
References
- ubuntu.com/security/notices/USN-8371-1 (opens in a new tab)
- ubuntu.com/security/CVE-2026-31676 (opens in a new tab)
- ubuntu.com/security/CVE-2026-43284 (opens in a new tab)
- ubuntu.com/security/CVE-2026-43494 (opens in a new tab)
- ubuntu.com/security/CVE-2026-43500 (opens in a new tab)
- ubuntu.com/security/CVE-2026-43503 (opens in a new tab)
- ubuntu.com/security/CVE-2026-45998 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46000 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46300 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46333 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47326 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47327 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47328 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47329 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47330 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47332 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47333 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47334 (opens in a new tab)
- ubuntu.com/security/CVE-2026-47337 (opens in a new tab)