What is CVE-2026-53088?

CVE-2026-53088 is a critical-severity vulnerability in Linux, classified under Off-by-one Error. CVSS score: 9.8/10. Published 2026-06-24.

How severe is CVE-2026-53088?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Linux

CVE-2026-53088

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb The write_ptr points to the next open tx_cb. We want to return the tx_cb that gets rewinded, so we must rewind the poi…

EPSS: 0.004 (32.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636, 3bdf77194ea822390b405639b77659071fd2c2e9, 3.16.50
Linux Linux_kernel — versions 4.13

Weakness classification (CWE)

CWE-193 — Off-by-one Error

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-53088?: CVE-2026-53088 is a critical-severity vulnerability in Linux, classified under Off-by-one Error. CVSS score: 9.8/10. Published 2026-06-24.
How severe is CVE-2026-53088?: Critical severity. CVSS v3 base score is 9.8 out of 10.