[NEW] [high] rsyslog: Vulnerability allows Denial of Service and potentially code execution

highCVE-2026-61548

A remote, anonymous attacker can exploit a vulnerability in rsyslog to conduct a Denial of Service attack and potentially execute arbitrary program code.

CSIRTS triage

vendor: rsyslog product: rsyslog Denial of serviceOther

What: A vulnerability allows a remote, anonymous attacker to conduct a Denial of Service attack and potentially execute arbitrary program code.
Who is affected: All deployments of rsyslog.
Urgency: Remediation is urgent due to the potential for Denial of Service and code execution.
Action: Apply the patch for CVE-2026-61548.

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

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-24
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2421

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-61548	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownUSN-8598-1: rsyslog vulnerabilitiesubuntu

Recent advisories for rsyslog

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownUSN-8598-1: rsyslog vulnerabilitiesubuntu · 2026-07-23
medium[NEW] [medium] rsyslog: Vulnerability Allows Denial of Servicecert-bund · 2026-07-23