Medium 5.5Published Jan 31, 2026

CVE-2026-23020net: 3com: 3c59x: fix possible null dereference in vortex_probe1()

Updated under an hour ago (Oct 27, 2026, 7:20 PM ET)

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.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: net: 3com: 3c59x: fix possible null dereference in vortex_probe1() pdev can be null and free_ring: can be called in 1297 with a null pdev.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: May 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	55c82617c3e82210b7471e9334e8fc5df6a9961f builds before 053ac9e37eee435e999277c0f1ef890dad6064bf; 55c82617c3e82210b7471e9334e8fc5df6a9961f builds before 6cff14b831dbdb32675b4c7904dcc3eeeaf47e9d; from 55c82617c3e82210b7471e9334e8fc5df6a9961f before 606872c8e8bf96066730f6a2317502c5633c37f1; 55c82617c3e82210b7471e9334e8fc5df6a9961f builds before 28b2a805609699be7b90020ae7dccfb234be1ceb; 55c82617c3e82210b7471e9334e8fc5df6a9961f builds before 2f05f7737e16d9a40038cc1c38a96a3f7964898b; from 55c82617c3e82210b7471e9334e8fc5df6a9961f before d82796a57cc0dac1dbef19d913c8f02a8cc7b1a7; from 55c82617c3e82210b7471e9334e8fc5df6a9961f before a4e305ed60f7c41bbf9aabc16dd75267194e0de3; d30fdc02c49ad9965bba25015ae66c22dae967d1; and 1 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 4.16.12 before 4.17; from 4.17.1 before 5.10.248; from 5.11 before 5.15.198; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6; 4.17; and 8 more ranges	NVD

References

References

https://git.kernel.org/stable/c/053ac9e37eee435e999277c0f1ef890dad6064bf	patch
https://git.kernel.org/stable/c/6cff14b831dbdb32675b4c7904dcc3eeeaf47e9d	patch
https://git.kernel.org/stable/c/606872c8e8bf96066730f6a2317502c5633c37f1	patch
https://git.kernel.org/stable/c/28b2a805609699be7b90020ae7dccfb234be1ceb	patch
https://git.kernel.org/stable/c/2f05f7737e16d9a40038cc1c38a96a3f7964898b	patch
https://git.kernel.org/stable/c/d82796a57cc0dac1dbef19d913c8f02a8cc7b1a7	patch
https://git.kernel.org/stable/c/a4e305ed60f7c41bbf9aabc16dd75267194e0de3	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.