Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-23242

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_conte…

Published Mar 18, 2026CWE-476EPSS 0.47%

Overview

CVE-2026-23242 is a high-severity vulnerability. It was published on March 18, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

RDMA/siw: Fix potential NULL pointer dereference in header processing

If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),

qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()

dereferences qp->rx_fpdu->more_ddp_segs without checking, which

may lead to a NULL pointer deref. Only check more_ddp_segs when

rx_fpdu is present.

KASAN splat:

[ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]

[ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142Refgit.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817Refgit.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274Refgit.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355Refgit.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5eRefgit.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0Refgit.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755Refgit.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175dRefcert-portal.siemens.com/productcert/html/ssa-019113.htmlRefcert-portal.siemens.com/productcert/html/ssa-082556.html

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23242?

CVE-2026-23242 is a high-severity vulnerability. It was published on March 18, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-23242?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-23242?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-23242?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23242 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999