VULNERABILITY INTELLIGENCE

CVE-2019-17543

CVSS score8.1 HIGH
EPSS probability9.12%
CISA KEVNot currently listed
Published2019-10-14
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states "only a few specific / uncommon usages of the API are at risk."

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references