Buffer overflow in Red Hat Fast Datapath For Rhel 10

CVE-2026-100236

A flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write.

Vulnerability class: Buffer Overflow

Published .

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-100236?
CVE-2026-100236 is a high-severity vulnerability in Red Hat Fast Datapath For Rhel 10, classified under Out-of-bounds Write. CVSS score: 8.6/10. Published 2026-10-14.
How severe is CVE-2026-100236?
High severity. CVSS v3 base score is 8.6 out of 10.