CVE-2026-6554 — infinte loop in libpcap before 1.10.7
libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop ite…
Published: 2026-09-05 · CVSS: 7.5 · CVSS 3.1
libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop iterations. A crafted filter program or the 'protochain' primitive used on a crafted network packet can cause the interpreter to loop infinitely.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7