CVE-2024-47702
CSIRTS triage
- What
- BPF verifier fails to properly reject sign-extension operations on packet data pointers, potentially allowing out-of-bounds access.
- Who is affected
- Systems running Linux kernel with eBPF enabled and executing untrusted BPF programs.
- Urgency
- Medium priority with CVSS 5.5; not exploited but represents kernel stability risk.
- Action
- Apply kernel patch to tighten BPF verifier constraints.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2024-47702: bpf: Fail verification for sign-extension of packet data/data_end/data_metamsrc · 2026-08-06
External references
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[](https://www.csirts.com/cve/CVE-2024-47702)