CVE-2025-38733Medium· 5.5▾ SunlitA flaw was found in the Linux kernel. Due to an incorrect identity mapping of the lowcore, a critical memory region, NULL pointer accesses may succeed instead of causing an exception. This vulnerability allows a local attacker to cause a D…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the vendor's CSAF advisory record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
7.8 → 5.5
high → medium
A flaw was found in the Linux kernel. Due to an incorrect identity mapping of the lowcore, a critical memory region, NULL pointer accesses may succeed instead of causing an exception. This vulnerability allows a local attacker to cause a Denial of Service (DoS) by triggering a system crash.
kernel: Linux kernel: Denial of Service due to incorrect lowcore memory mapping — rated Low by Red Hat. Released 2025-09-05, updated 2026-10-16.
Affected:
No fix planned:
Not affected:
Fix deferred
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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