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CVE-2026-98237

In the Linux kernel, the following vulnerability has been resolved: net: wwan: mhi_wwan_mbim: guard against a cyclic NDP chain The NDP traversal in mhi_mbim_rx() only stops when wNextNdpIndex is…

Published Oct 6, 2026EPSS 0.17%

Overview

CVE-2026-98237 is a known-severity vulnerability. It was published on October 6, 2026.

Technical description

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

net: wwan: mhi_wwan_mbim: guard against a cyclic NDP chain

The NDP traversal in mhi_mbim_rx() only stops when wNextNdpIndex is

zero. Nothing requires the offsets to advance, so a modem that

points an NDP at itself, or at an earlier NDP, keeps the loop

spinning forever on one CPU.

Break out when the next NDP offset is not larger than the current

one.

Verified in a QEMU guest with a fault injector feeding the driver's

receive callback an NTB whose single NDP points at itself: the

unpatched driver spins in mhi_mbim_rx() with one CPU pinned at 100%

and the thread never returns. With this check the loop terminates

within one iteration.

Changes in v2: move the non-increasing check to the wNextNdpIndex

retrieval site, as suggested by Loic Poulain, instead of tracking

the previous offset in a separate variable.

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.

Frequently asked questions

What is CVE-2026-98237?

CVE-2026-98237 is a known-severity vulnerability. It was published on October 6, 2026.

How severe is CVE-2026-98237?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-98237?

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-2026-98237?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98237 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.

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