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Critical 9.8Published May 6, 2026

CVE-2026-43208net: do not pass flow_id to set_rps_cpu()

Updated under an hour ago ()

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In the Linux kernel, the following vulnerability has been resolved: net: do not pass flow_id to set_rps_cpu() Blamed commit made the assumption that the RPS table for each receive queue would have the same size, and that it would not change. Compute flow_id in set_rps_cpu(), do not assume we can use the value computed by get_rps_cpu(). Otherwise we risk out-of-bound access and/or crashes.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
Analyzed
Record last updated
Aug 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from 48aa30443e52c9666d5cd5e67532e475f212337e before 5455a232edea6b946b99449f15ca771a8874a5a6; from 48aa30443e52c9666d5cd5e67532e475f212337e before ed712dc0d64dee5f0d05e4d8ca57711f8a9c850c; 48aa30443e52c9666d5cd5e67532e475f212337e builds before 8a8a9fac9efa6423fd74938b940cb7d731780718
CNA record
linux linux_kernel
linux:linux_kernel
from 6.18 before 6.18.16; from 6.19 before 6.19.6; 7.0
NVD

References

References

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.

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