Is CVE-2026-23042 in the CISA KEV catalog?

No. CVE-2026-23042 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-23042?

CVE-2026-23042 has an EPSS score of 0.14% (4th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23042?

Upgrade linux on debian unstable to 6.18.8-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-23042

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: idpf: fix aux device unplugging when rdma is not supported by vport If vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not allocate vdev_info for this vport. This leads to kernel NULL pointer dereference in idpf_idc_vport_dev_down(), which references vdev_info for every vport regardless. Check, if vdev_info was ever allocated before unplugging aux device.

How to fix

Remediation Available

linuxDebian

Fixed in:6.18.8-1CVE-2026-23042

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.14%probability of exploitation in 30 days

4thpercentile

Low risk: more likely to be exploited than 4% of all known CVEs.

References

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-04.