CVE-2026-0799 - OOBR and OOBW in libpcap before 1.10.7
CVE ID :CVE-2026-0799
Published : Sept. 5, 2026, 6:48 p.m. | 15 minutes ago
Description :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.
Severity: 8.7 | HIGH
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Published : Sept. 5, 2026, 6:48 p.m. | 15 minutes ago
Description :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.
Severity: 8.7 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more...