CVE-2026-31912 — OOBR in libpcap before 1.10.7
libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that tr…
Published: 2026-09-05 · CVSS: 5.5 · CVSS 3.1
libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7