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CVE-2026-43190

גבוהה 8.2

תיאור (מקור, אנגלית)

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length before reading optlen Quoting reporter: In net/netfilter/xt_tcpmss.c (lines 53-68), the TCP option parser reads op[i+1] directly without validating the remaining option length. If the last byte of the option field is not EOL/NOP (0/1), the code attempts to index op[i+1]. In the case where i + 1 == optlen, this causes an out-of-bounds read, accessing memory past the optlen boundary (either reading beyond the stack buffer _opt or the following payload).

מדדים

CVSS 3.1
8.2 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-1/8/2026
CWE
CWE-125

מוצרים מושפעים

linux: linux kernel

קישורים