CVE-2025-47436

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/kd6tlv8fs5jybmsgxr4vrkdxyc866wrn	Mailing List Vendor Advisory
https://orc.apache.org/security/CVE-2025-47436/	Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/05/13/4	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:orc::::::::
	cpe:2.3:a:apache:orc::::::::
	cpe:2.3:a:apache:orc::::::::
	cpe:2.3:a:apache:orc::::::::

History

14 Jul 2025, 14:55

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-14 14:15

Updated : 2025-07-14 14:55

NVD link : CVE-2025-47436

Mitre link : CVE-2025-47436

CVE.ORG link : CVE-2025-47436

JSON object : View

Products Affected

apache

orc

CWE

CWE-122

Heap-based Buffer Overflow

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