CVE-2026-42583
A remote, anonymous attacker can exploit multiple vulnerabilities in Netty to bypass security measures, manipulate data, disclose confidential information, or cause a denial-of-service condition.
CSIRTS triage
- What
- Multiple vulnerabilities can be exploited by a remote, anonymous attacker to bypass security measures, manipulate data, disclose information, or cause denial of service.
- Who is affected
- Deployments of Netty.
- Urgency
- Medium urgency due to the variety of potential impacts including data manipulation and denial of service.
- Action
- Apply the latest patches for Netty to address these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[UPDATE] [medium] Netty: Multiple vulnerabilitiescert-bund · 2026-07-10
- high[UPDATE] [high] Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira and Jira Service Management: …cert-bund · 2026-07-09
External references
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[](https://www.csirts.com/cve/CVE-2026-42583)