CVE-2026-53088 (CVSS 9.8)

Description

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 pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0040

Probability of exploitation

0.33%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/14e9f86564fff7bcf7f45c1b69080e837b31d185 https://git.kernel.org/stable/c/29394f722f620281f2ee9a47f947734e53d72c90 https://git.kernel.org/stable/c/2a74590170427a3ca7cc4bb8690cdd559129c29c https://git.kernel.org/stable/c/4cab761fc51c65aef741fcece4a18f3554edbc09 https://git.kernel.org/stable/c/57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38 https://git.kernel.org/stable/c/72df896e31ddd06fcc5a789f025ad7a62a18bc9b https://git.kernel.org/stable/c/85f34ec320d3881badfd4edc5fee5cd5012bb54d https://git.kernel.org/stable/c/fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de

Frequently Asked Questions

What is 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 pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-53088? +

CVE-2026-53088 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0040, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-53088? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-53088