CVE intelligence

CVE-2026-89906

Vulnerability intelligence

Published Sep 16, 2026Sources checked Nov 10, 2026

7.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-89906 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 24, 2026

Release Notes

Vendor-listed releases

6.6.159.1-1

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-89906?

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

LoongArch: BPF: Refactor jump offset calculation in tail call

The old macro-based jmp_offset calculation derives the jump distance from a stale prior-pass code stride, which can lead to wrong branch offsets and soft lockups under extra JIT passes.

Fix this by calculating the offset directly on the absolute target: "ctx->offset[insn + 1] - ctx->idx".

To avoid a false 16-bit range check abort during size estimation, add a "ctx->image == NULL" guard to inject a safe dummy offset.

Source: NVD