https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2021-3520.htmlhttps://patchthecve.com/cve/CVE-2021-3520.htmlWed, 14 Oct 2026 10:17:44 +0000CRITICAL 9.8: There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability,https://patchthecve.com/cve/CVE-2019-17543.htmlhttps://patchthecve.com/cve/CVE-2019-17543.htmlWed, 14 Oct 2026 07:16:49 +0000HIGH 8.1: 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 https://patchthecve.com/cve/CVE-2014-4715.htmlhttps://patchthecve.com/cve/CVE-2014-4715.htmlWed, 17 Jun 2026 00:10:29 +0000MEDIUM 5.0: Yann Collet LZ4 before r119, when used on certain 32-bit platforms that allocate memory beyond 0x80000000, does not properly detect integer overflows, which allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted Lit