CVE-2025-47436

MEDIUM EPSS 36.4%
Published May 14, 20251y ago · Modified Jun 17, 20261w ago
6.0 CVSS 4.0
Medium
Find Similar
Published May 14, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
6.0
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:X/R:X/V:X/RE:M/U:Amber
Attack Vector Local
Attack Complexity Low
Privileges Required High
User Interaction A
Scope N

Threat Intelligence

EPSS Exploit Probability
36.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-122

Affected Products 4

VendorProductVersionRange
apacheorc* <1.8.9
apacheorc*≥1.9.0  –  <1.9.6
apacheorc*≥2.0.0  –  <2.0.5
apacheorc*≥2.1.0  –  <2.1.2

References 3

  • openwall.com http://www.openwall.com/lists/oss-security/2025/05/13/4
    Mailing ListThird Party Advisory
  • lists.apache.org https://lists.apache.org/thread/kd6tlv8fs5jybmsgxr4vrkdxyc866wrn
    Mailing ListVendor Advisory
  • orc.apache.org https://orc.apache.org/security/CVE-2025-47436/
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.