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Vulnerability Details CVE-2026-43452

In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: guard option walkers against 1-byte tail reads When the last byte of options is a non-single-byte option kind, walkers that advance with i += op[i + 1] ? : 1 can read op[i + 1] past the end of the option area. Add an explicit i == optlen - 1 check before dereferencing op[i + 1] in xt_tcpudp and xt_dccp option walkers.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 27.9%
CVSS Severity
CVSS v3 Score 8.2
Products affected by CVE-2026-43452


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