CVE-2026-52905
5.5 · MEDIUMOverview
CVE-2026-52905 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 9, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/core: disallow non-power of two min_region_sz on damon_start()
Commit d8f867fa0825 ("mm/damon: add damon_ctx->min_sz_region") introduced
a bug that allows unaligned DAMON region address ranges. Commit
c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz")
fixed it, but only for damon_commit_ctx() use case. Still, DAMON sysfs
interface can emit non-power of two min_region_sz via damon_start(). Fix
the path by adding the is_power_of_2() check on damon_start().
The issue was discovered by sashiko [1].
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | linux_kernel | >= 6.18, < 6.18.30 | Affected |
Frequently Asked Questions
What is CVE-2026-52905?
CVE-2026-52905 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 9, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2026-52905?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-52905?
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2026-52905?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-52905 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.
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