High 7.3Published May 27, 2026

CVE-2026-45932bpf: Fix tcx/netkit detach permissions when prog fd isn't given

Updated under an hour ago (Oct 26, 2026, 2:10 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tcx/netkit detach permissions when prog fd isn't given This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Undergoing Analysis
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e420bed025071a623d2720a92bc2245c84757ecb before 8e1623e7d61faf16cbadc80550da874303611ff5; from e420bed025071a623d2720a92bc2245c84757ecb before 0c249f523175963b0a746bba673ecebdf6cefd86; from e420bed025071a623d2720a92bc2245c84757ecb before 4e0772cded109c238411f2fac36ac39302758b81; from e420bed025071a623d2720a92bc2245c84757ecb before 3f04cc1e5374da4c5e791ae010a06cfea7bacbe6; from e420bed025071a623d2720a92bc2245c84757ecb before ae23bc81ddf7c17b663c4ed1b21e35527b0a7131	CNA record
linux linux_kernel linux:linux_kernel	from 6.6 before 6.18.14; from 6.19 before 6.19.4	NVD

References

References

https://git.kernel.org/stable/c/8e1623e7d61faf16cbadc80550da874303611ff5
https://git.kernel.org/stable/c/0c249f523175963b0a746bba673ecebdf6cefd86
https://git.kernel.org/stable/c/4e0772cded109c238411f2fac36ac39302758b81	patch
https://git.kernel.org/stable/c/3f04cc1e5374da4c5e791ae010a06cfea7bacbe6	patch
https://git.kernel.org/stable/c/ae23bc81ddf7c17b663c4ed1b21e35527b0a7131	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.