ZDI-26-1006: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability
Source Zero Day Initiative
Not known to be exploited · fixed in fe8477e23dd2ee6bce231d65f2586a333b211dc0 : patch Linux kernel soon.
Data as of 13 Nov 2026, 22:36 UTC
Rated High by Zero Day Initiative · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in fe8477e23dd2ee6bce231d65f2586a333b211dc0, d7d6ff98d5d1b400f02211f962ac32cc0020aeab, 79dc34beb1fdb3da79753e51e15c68591a2561fe +2
Exploitation evidence
Disclosed: evidence found.
CVE published 7 Nov 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 13 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
Description
A local privilege escalation vulnerability exists in the Linux Kernel's skbuff skb_zerocopy component. Exploitation requires the attacker to have prior ability to execute low-privileged code on the affected system. The vulnerability has a high severity rating assigned by the Zero Day Initiative and is tracked as CVE-2026-99284.