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CVE-2026-74547

Published Aug 15, 2026 EPSS 0.18% (7th pctl)

Overview

CVE-2026-74547 is a known-severity vulnerability. It was published on August 15, 2026.

Technical Description

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

hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread

When userspace configures 'auto_update_interval' to 0 via sysfs, the

background kthread executes schedule_timeout_interruptible(0), which

returns immediately.

If 'num_temp_sensors' is concurrently or previously set to 0, the

msleep_interruptible() delay inside adt7470_read_temperatures() also

becomes 0. This combination forces the background thread into a tight,

unbounded busy-loop, hogging the CPU and flooding the I2C bus with a

continuous stream of transactions.

Fix this vulnerability by raising the lower limit of the clamp_val in

auto_update_interval_store() from 0 to 500 milliseconds. This guarantees

a reasonable minimum sleep window between sensor updates, protecting the

system from intentional or accidental I2C bus denial of service.

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

Ref git.kernel.org/stable/c/1325975a2eab265510e6036d8bf0c0068373d332 Ref git.kernel.org/stable/c/1a42bd72a66205e439db1d1142442b62d393408a Ref git.kernel.org/stable/c/2c4c4d7cadd10b50b5489183bbbb9eb95f6f8344 Ref git.kernel.org/stable/c/38e6b5ce5794ff09442231cc171c2be5e900bab3 Ref git.kernel.org/stable/c/4dc1518f9cc57c6db99514cafeb02dd7117d5bda Ref git.kernel.org/stable/c/5ea299c3aa42a827f6a863eeead6de3525bbb17a Ref git.kernel.org/stable/c/82d65f7ef11edcea0228745440b8b4b1f222c34c Ref git.kernel.org/stable/c/cb0b7f9c43b0abbd422a7e4c2c85e91db429207c

Frequently Asked Questions

What is CVE-2026-74547?

CVE-2026-74547 is a known-severity vulnerability. It was published on August 15, 2026.

How severe is CVE-2026-74547?

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-2026-74547?

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-2026-74547?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-74547 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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