CVE-2026-43452 (GCVE-0-2026-43452)
Vulnerability from cvelistv5
Published
2026-05-08 14:22
Modified
2026-10-19 19:26
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
Version: 2e4e6a17af35be359cc8f1c924f8f198fbd478cc
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  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.