[UPDATE] [hoch] Rsync: Mehrere Schwachstellen

CSIRTS triage

What

Multiple vulnerabilities can escalate privileges, disclose information, bypass security measures, and conduct a Denial of Service attack.

Who is affected

Attackers can exploit vulnerabilities in Rsync.

Urgency

Remediation is high urgency due to the high severity of the vulnerabilities.

Action

Apply patches or updates as soon as possible.

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

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-09-10

Exploitation

Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1611

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.

• Low exploitation riskCVE-2026-295180.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-436170.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-436180.78% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-436190.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-436200.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-452320.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• high[UPDATE] [hoch] Rsync: Mehrere Schwachstellencert-bund
• high[NEW] [high] Oracle Solaris third-party components: Multiple vulnerabilitiescert-bund

Recent advisories for Rsync

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.

• high[UPDATE] [hoch] Rsync: Mehrere Schwachstellencert-bund · 2026-09-15
• medium[UPDATE] [mittel] Rsync: Schwachstelle ermöglicht nicht spezifizierten Angriffcert-bund · 2026-09-04
• medium[UPDATE] [mittel] Rsync: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungencert-bund · 2026-09-04
• high[UPDATE] [hoch] Rsync: Mehrere Schwachstellencert-bund · 2026-09-04
• highCVE-2026-70464: rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthe…nvd · 2026-08-13
• highCVE-2026-70463: rsync 3.1.0 before 3.5.0 contains an authorization bypass in auth users directive parsing. The…nvd · 2026-08-13

More from CERT-Bund (BSI) Security Advisories

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• high[NEU] [hoch] MISP: Mehrere Schwachstellen2026-09-15
• medium[UPDATE] [mittel] Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service oder unspezifischer Angri…2026-09-15