CVE-2026-42258
A remote, anonymous attacker can exploit multiple vulnerabilities in Red Hat Enterprise Linux to conduct a denial of service attack, bypass security measures, manipulate data, or disclose confidential information.
CSIRTS triage
- What
- Multiple vulnerabilities allow denial of service, bypass security measures, manipulate data, or disclose information.
- Who is affected
- Deployments of Red Hat Enterprise Linux with ruby: net-imap.
- Urgency
- Remediation is medium urgency due to the potential impacts of the vulnerabilities.
- Action
- Update to the latest version of the affected packages.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.81% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[UPDATE] [medium] Red Hat Enterprise Linux (ruby: net-imap): Multiple vulnerabilitiescert-bund · 2026-07-10
- high[UPDATE] [high] HCL BigFix Compliance (Ruby): Multiple vulnerabilitiescert-bund · 2026-07-07
External references
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[](https://www.csirts.com/cve/CVE-2026-42258)