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7 July 2021

Vulnerabilities first published on this day (UTC), newest first.

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  • High 8.3
    CVE-2021-22555 Exploited Public exploit EPSS 79%

    Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE

    A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

    linux-raspi2 linux-hwe linux-azure linux-riscv Linux Debian Ubuntu
    KEV Oct 6, 2025