CVE-2025-47436
CRITICALApache Orc < 1.8.9 - Heap Buffer Overflow
Title source: ruleDescription
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.
Scores
CVSS v3
9.8
EPSS
0.0029
EPSS Percentile
52.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Classification
CWE
CWE-122
Status
published
Affected Products (1)
apache/orc
< 1.8.9
Timeline
Published
May 14, 2025
Tracked Since
Feb 18, 2026