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[UPDATE] [high] QEMU: Vulnerability allows privilege escalation

highCVE-2026-3886
A local attacker can exploit a vulnerability in QEMU to escalate their privileges and execute arbitrary code.

CSIRTS triage

vendor: QEMUproduct: QEMUPrivilege escalationRemote code execution
What
A vulnerability in QEMU allows a local attacker to escalate their privileges and execute arbitrary code.
Who is affected
Local attackers using affected versions of QEMU are at risk.
Urgency
Remediation is urgent due to the high severity of the privilege escalation vulnerability.
Action
Apply the latest patches for QEMU.

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
2026-07-16
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-2026-1855

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-3886coverage & exploitation statusNVD · CVE.org

Recent advisories for QEMU

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.

More from CERT-Bund (BSI) Security Advisories