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CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated

mediumCVSS 5.5CVE-2026-43197

CSIRTS triage

vendor: Linuxproduct: Linux KernelInformation disclosure
What
Netconsole avoids out-of-bounds reads by ensuring message strings are null-terminated.
Who is affected
Systems using the netconsole logging mechanism.
Urgency
Moderately urgent as OOB reads can leak kernel memory.
Action
Apply the kernel patch fixing netconsole OOB read vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43197

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-43197coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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