Critical Rsyslog Vulnerabilities Lead to Denial of Service Risks
ID: 871fef44-bbe3-5eda-ac38-27942739f82b
STIX ID: report--871fef44-bbe3-5eda-ac38-27942739f82b
Feed Name: ThreatCluster
Threat Score
Two critical vulnerabilities in rsyslog (CVE-2026-61548) disclosed on 2026-07-23 allow remote denial-of-service by exploiting improper regex-based TCP framing and oversized RFC5424 structured data, affecting Ubuntu 22.04, 24.04, and 26.04 LTS; users are advised to update affected packages and consider Ubuntu Pro coverage.
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