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[UPDATE] [critical] Apache log4j: Vulnerability allows code execution

critical
A remote, anonymous attacker can exploit a vulnerability in Apache log4j to execute arbitrary program code.

CSIRTS triage

vendor: Apacheproduct: log4jRemote code execution
What
A vulnerability in Apache log4j allows a remote attacker to execute arbitrary program code.
Who is affected
Remote, anonymous attackers targeting systems using Apache log4j.
Urgency
This is a critical vulnerability that requires immediate attention due to the potential for remote code execution.
Action
Patch Apache log4j to the latest version to remediate this vulnerability.

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
critical
Published
2026-07-08
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-2022-0351

Recent advisories for Apache log4j

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