High [CVE-2026-61548] Denial of Service due to stack buffer overflow in mmpstrucdata plugin
This high-severity Red Hat Linux advisory covers CVE-2026-61548.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
Denial of Service due to stack buffer overflow in mmpstrucdata plugin. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-120.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
- 8.2606.0
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
Mitigation checklist
- To mitigate this issue, ensure the `mmpstrucdata` plugin is not loaded or used in rsyslog configurations where it is not essential. If the plugin is required, restrict network access to the rsyslog service to trusted sources. Additionally, review and adjust the `MaxMessageSize` configuration to prevent the processing of excessively large structured-data parameters. *Warning: Changes to rsyslog configuration may require a service restart, which will temporarily interrupt log collection.*
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
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