CVE-2026-0799 — OOBR and OOBW in libpcap before 1.10.7
In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interprete…
Published: 2026-09-05 · CVSS: 8.7 · CVSS 3.1
In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7