CVE-2026-50721
A remote, anonymous attacker can exploit multiple vulnerabilities in Red Hat Enterprise Linux to conduct a Denial of Service attack and potentially bypass authentication.
CSIRTS triage
- What
- Multiple vulnerabilities allow a remote, anonymous attacker to conduct a Denial of Service attack and potentially bypass authentication.
- Who is affected
- Deployments of Red Hat Enterprise Linux.
- Urgency
- Remediation is medium urgency due to the potential for service disruption and security risks.
- Action
- Update to the latest patches for Red Hat Enterprise Linux.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Advisory coverage (4)
- medium[NEW] [medium] Red Hat Enterprise Linux (libreswan): Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-08-21
- highCVE-2026-50721: IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payloadmsrc · 2026-07-14
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 10, 2026)cert-fr-avis · 2026-07-10
- highCVE-2026-50721: Libreswan, via the function RSA_authenticate_hash_signature_raw_rsa(), did not correctly verif…nvd · 2026-07-02
External references
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