Linuxsecurity Critical OpenVPN Vulnerabilities Affecting Ubuntu Systems
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- •OpenVPN vulnerabilities could lead to denial of service or arbitrary code execution.
- •Affected systems include Ubuntu 24.04 LTS and 26.04 LTS.
- •Immediate updates are necessary to address the critical security issues.
Multiple vulnerabilities were discovered in OpenVPN affecting Ubuntu 24.04 LTS and 26.04 LTS. Key issues include a 1-byte buffer overrun (CVE-2026-11771) that could lead to denial of service or arbitrary code execution. Other vulnerabilities include incorrect metadata handling (CVE-2026-12932) and use-after-free errors (CVE-2026-12996, CVE-2026-13117, CVE-2026-13122). These flaws allow attackers to crash OpenVPN or extract sensitive information. The vulnerabilities were published on July 6, 2026, and require immediate patching. Users are advised to update to the latest OpenVPN versions to mitigate risks.
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