[UPDATE] [high] Rsync: Multiple vulnerabilities

highCVE-2026-29518 CVE-2026-43617 CVE-2026-43618 CVE-2026-43619 CVE-2026-43620 CVE-2026-45232

An attacker can exploit multiple vulnerabilities in Rsync to escalate privileges, disclose information, bypass security measures, and conduct a Denial of Service attack.

CSIRTS triage

vendor: Rsync product: Rsync Privilege escalation Information disclosure Authentication bypass Denial of service

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.

⚡ Watch Rsync

Get an email when a new Rsync advisory drops — max one per day, one-click unsubscribe.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-21
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-2026-1611

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 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 20% of all 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 52% of all 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 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 35% of all 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 26% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-29518	coverage & exploitation status	NVD · CVE.org
CVE-2026-43617	coverage & exploitation status	NVD · CVE.org
CVE-2026-43618	coverage & exploitation status	NVD · CVE.org
CVE-2026-43619	coverage & exploitation status	NVD · CVE.org
CVE-2026-43620	coverage & exploitation status	NVD · CVE.org
CVE-2026-45232	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

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.

unknownCVE-2026-18188: A format string vulnerability was found in the Rsync Backup on the ADM. The vulnerability occu…nvd · 2026-07-30
medium[UPDATE] [medium] Rsync: Vulnerability allows bypassing security measurescert-bund · 2026-07-21