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FreeBSD — Vulnerabilities & Security Advisories 104

Browse all 104 CVE security advisories affecting FreeBSD. AI-powered Chinese analysis, POCs, and references for each vulnerability.

FreeBSD is a Unix-like operating system primarily utilized for servers, networking appliances, and embedded systems requiring high stability and performance. Its core architecture emphasizes code quality and security, yet it remains susceptible to historical vulnerabilities including remote code execution, buffer overflows, and privilege escalation flaws. These issues often stem from complex kernel subsystems or network stack implementations. Notable security characteristics include its strict adherence to POSIX standards and a transparent security advisory process managed by the FreeBSD Security Team. While major incidents are relatively rare compared to larger ecosystems, the presence of over one hundred recorded CVEs highlights the ongoing need for rigorous patch management. Administrators must prioritize timely updates to mitigate risks associated with legacy components and ensure the integrity of critical infrastructure relying on this robust, open-source platform.

Found 104 results / 104Clear Filters
Top products by FreeBSD: FreeBSD
CVE IDTitleCVSSSeverityPublished
CVE-2026-35547 Heap overflow in libnv — FreeBSDCWE-122 9.8 -2026-04-30
CVE-2026-39457 Stack overflow via select() file descriptor set overflow — FreeBSDCWE-121 8.4 -2026-04-30
CVE-2026-42512 Remotely triggerable out-of-bounds heap write in dhclient — FreeBSDCWE-122 9.8 -2026-04-30
CVE-2026-7164 pf can overflow the stack parsing crafted SCTP packets — FreeBSDCWE-674 7.5 -2026-04-30
CVE-2026-7270 Local privilege escalation via execve() — FreeBSDCWE-783 7.8 -2026-04-30
CVE-2026-42511 Remote code execution via malicious DHCP options — FreeBSDCWE-149 8.8 -2026-04-30
CVE-2026-6386 Missing large page handling in pmap_pkru_update_range() — FreeBSDCWE-269 7.1AIHighAI2026-04-22
CVE-2026-5398 Kernel use-after-free bug in the TIOCNOTTY handler — FreeBSDCWE-416 8.4AIHighAI2026-04-22
CVE-2026-4748 pf silently ignores certain rules — FreeBSDCWE-480 5.3AIMediumAI2026-04-01
CVE-2026-4747 Remote code execution via RPCSEC_GSS packet validation — FreeBSDCWE-121 8.8 -2026-03-26
CVE-2026-4652 Remote denial of service via null pointer dereference — FreeBSDCWE-476 7.5 -2026-03-26
CVE-2026-4247 TCP: remotely exploitable DoS vector (mbuf leak) — FreeBSDCWE-401 7.5 -2026-03-26
CVE-2026-3038 Local DoS and possible privilege escalation via routing sockets — FreeBSDCWE-787 6.2AIMediumAI2026-03-09
CVE-2026-2261 blocklistd(8) socket leak — FreeBSDCWE-772 7.5AIHighAI2026-03-09
CVE-2025-15576 Jail chroot escape via fd exchange with a different jail — FreeBSDCWE-269 5.5AIMediumAI2026-03-09
CVE-2025-15547 Jail escape by a privileged user via nullfs — FreeBSDCWE-269 6.7AIMediumAI2026-03-09
CVE-2025-14769 ipfw denial of service — FreeBSDCWE-476 7.5AIHighAI2026-03-09
CVE-2025-14558 Remote code execution via ND6 Router Advertisements — FreeBSDCWE-20 9.8AICriticalAI2026-03-09
CVE-2025-24934 SO_REUSEPORT_LB breaks connect(2) for UDP sockets — FreeBSDCWE-488 6.2AIMediumAI2025-10-22
CVE-2025-0662 Uninitialized kernel memory disclosure via ktrace(2) — FreeBSDCWE-122 5.5 -2025-01-30
CVE-2025-0374 Unprivileged access to system files — FreeBSDCWE-732 7.1 -2025-01-30
CVE-2025-0373 Buffer overflow in some filesystems via NFS — FreeBSDCWE-121 6.5 -2025-01-30
CVE-2024-45289 Unbounded allocation in ctl(4) CAM Target Layer — FreeBSDCWE-665 9.1AICriticalAI2024-11-12
CVE-2024-39281 Unbounded allocation in ctl(4) CAM Target Layer — FreeBSDCWE-20 6.5AIMediumAI2024-11-12
CVE-2024-51566 bhyve(8) NVMe driver to guest-induced infinite loops. — FreeBSDCWE-1285 5.5AIMediumAI2024-11-12
CVE-2024-51565 bhyve(8) hda driver buffer over-read — FreeBSDCWE-125 6.5AIMediumAI2024-11-12
CVE-2024-51564 bhyve(8) infinite loop in the hda audio driver — FreeBSDCWE-1285 6.5AIMediumAI2024-11-12
CVE-2024-51563 bhyve(8) virtio_vq_recordon time-of-check to time-of-use race — FreeBSDCWE-367 7.0AIHighAI2024-11-12
CVE-2024-51562 bhyve(8) nvme_opc_get_log_page buffer over-read — FreeBSDCWE-125 8.1AIHighAI2024-11-12
CVE-2024-41721 bhyve(8) out-of-bounds read access via XHCI emulation — FreeBSDCWE-125 6.8 -2024-09-20

This page lists every published CVE security advisory associated with FreeBSD. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.