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CVE-2025-47436
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2025-05-14T14:15:30.703 · Last modified 2026-06-17T09:28:06.387

Summary

Heap-based Buffer Overflow vulnerability in Apache ORC. A vulnerability has been identified in the ORC C++ LZO decompression logic, where specially crafted malformed ORC files can cause the decompressor to allocate a 250-byte buffer but then attempts to copy 295 bytes into it. It causes memory corruption. This issue affects Apache ORC C++ library: through 1.8.8, from 1.9.0 through 1.9.5, from 2.0.0 through 2.0.4, from 2.1.0 through 2.1.1. Users are recommended to upgrade to version 1.8.9, 1.9.6, 2.0.5, and 2.1.2, which fix the issue.

Affected products

apache — orc

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.