03/11/2026
𝗖𝗿𝗶𝘁𝗶𝗰𝗮𝗹 𝗟𝗶𝗻𝘂𝘅 𝗞𝗲𝗿𝗻𝗲𝗹 𝗧𝗖𝗣 𝗩𝘂𝗹𝗻𝗲𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝘆 (𝗖𝗩𝗘-𝟮𝟬𝟮𝟲-𝟵𝟴𝟰𝟯𝟮)
CERT-PH has issued a security advisory regarding a critical CVSS 9.8 vulnerability in the Linux kernel’s IPv4 TCP connection-handling implementation.
A race condition causing a use-after-free memory flaw could allow unauthenticated remote attackers to trigger memory corruption or execute arbitrary code with root privileges on affected Linux environments. Recent security research demonstrated AI-developed exploits targeting Multipath TCP (MPTCP) listeners, increasing the urgency of remediation.
The vulnerability affects major Linux distributions including Ubuntu, Red Hat Enterprise Linux (RHEL), Debian, SUSE, Amazon Linux, and Oracle Linux. Patches are already available for select distributions, while fixes for others remain in progress.
All system administrators, cloud engineers, and IT leads are urged to inspect their Linux deployments and apply vendor kernel patches immediately.
Proactive patching, continuous surveillance, and strong response protocols are vital to securing our systems and reinforcing digital defenses.
𝗥𝗲𝗮𝗱 𝗺𝗼𝗿𝗲 𝗵𝗲𝗿𝗲:
https://ncert.gov.ph/critical-linux-kernel-tcp.../
You can report cybersecurity incidents to CERT-PH via:
📧 [email protected]
☎️ 8920-0101 loc. 1708 or 2378
𝗖𝗿𝗶𝘁𝗶𝗰𝗮𝗹 𝗟𝗶𝗻𝘂𝘅 𝗞𝗲𝗿𝗻𝗲𝗹 𝗧𝗖𝗣 𝗩𝘂𝗹𝗻𝗲𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝘆 (𝗖𝗩𝗘-𝟮𝟬𝟮𝟲-𝟵𝟴𝟰𝟯𝟮)
CERT-PH has issued a security advisory regarding a critical CVSS 9.8 vulnerability in the Linux kernel’s IPv4 TCP connection-handling implementation.
A race condition causing a use-after-free memory flaw could allow unauthenticated remote attackers to trigger memory corruption or execute arbitrary code with root privileges on affected Linux environments. Recent security research demonstrated AI-developed exploits targeting Multipath TCP (MPTCP) listeners, increasing the urgency of remediation.
The vulnerability affects major Linux distributions including Ubuntu, Red Hat Enterprise Linux (RHEL), Debian, SUSE, Amazon Linux, and Oracle Linux. Patches are already available for select distributions, while fixes for others remain in progress.
All system administrators, cloud engineers, and IT leads are urged to inspect their Linux deployments and apply vendor kernel patches immediately.
Proactive patching, continuous surveillance, and strong response protocols are vital to securing our systems and reinforcing digital defenses.
𝗥𝗲𝗮𝗱 𝗺𝗼𝗿𝗲 𝗵𝗲𝗿𝗲:
https://ncert.gov.ph/critical-linux-kernel-tcp-vulnerability-cve-2026-98432-potential-remote-code-execution-and-privilege-escalation/
You can report cybersecurity incidents to CERT-PH via:
📧 [email protected]
☎️ 8920-0101 loc. 1708 or 2378