CVE-2026-6244
libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a division by zero.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.5
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.10%
- CWE
- CWE-369
- Published
- 2026-09-05
- Last modified
- 2026-09-08
Affected products
- The Tcpdump Group libpcap
Weakness type
Related vulnerabilities
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- CVE-2026-19025 — HDF5 divide-by-zero (SIGFPE) via mismatched chunk-layout dimensionality and dataspace rank on dataset open
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- CVE-2026-53503 — Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS