Critical Vulnerabilities in Asterisk Software Discovered, Enabling DoS and Security Bypass

Multiple vulnerabilities were discovered in Asterisk on 26 June 2026, as reported by CERT-FR. These flaws allow attackers to trigger remote denial of service (DoS), data integrity compromise, and security policy bypass. No specific CVE identifiers, affected versions, or technical exploitation details were provided in the notice. The vulnerabilities impact the Asterisk communication software, though the exact scope of affected deployments remains unspecified. The advisory focuses on the confirmed impacts rather than mitigation steps or attack vectors.