CVE-2026-72065: Linux kernel · net: mana: Validate the packet length reported by the NIC
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical · fixed in 6.8.0-1070.78~22.04.1 : patch Linux kernel as a priority.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-1070.78~22.04.1, 6.8.0-1068.75~22.04.1, 7.0.0-1013.13~24.04.1 +18
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther 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 for the affected Linux kernel versions. Users should apply the official updates provided by their Linux distribution to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the patch.
Description
A vulnerability in the Linux kernel's MANA network driver was resolved by validating the packet length reported by the NIC before processing. The issue involved trusting the RX Completion Queue Entry (CQE) length supplied by the NIC device without validation, which could lead to improper packet handling. This vulnerability has a high CVSS score of 9.8, indicating critical impact on confidentiality, integrity, and availability. Multiple specific Linux kernel versions are affected. A patch is available to address this issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72065 (opens in a new tab)
- git.kernel.org/stable/c/282c5214ca4eb3799158c76782646e86d2945d1b (opens in a new tab)
- git.kernel.org/stable/c/2e276b14b6d378372bf0152df89286cbe7632fb0 (opens in a new tab)
- git.kernel.org/stable/c/2e2a83b4998af4384e677d3b2ac08565274279bf (opens in a new tab)
- git.kernel.org/stable/c/6080189291d958604dcefe513a13900835ac982f (opens in a new tab)
- git.kernel.org/stable/c/6d13eaa13341a8f80aaf86f78591e1b1d393711d (opens in a new tab)
- ubuntu.com/security/CVE-2026-72065 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72065 (opens in a new tab)
- git.kernel.org/linus/2e2a83b4998af4384e677d3b2ac08565274279bf (opens in a new tab)
- ubuntu.com/security/notices/USN-8781-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8904-1 (opens in a new tab)