CVE-2023-53705

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bounds access in ipv6_find_tlv() optlen is fetched without checking whether there is more than one byte to parse. It can lead to out-of-bounds access. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.

CVSS 3.1

8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

EPSS

0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-25)

Published

2025-10-22

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/011f47c8b8389154f996f5f69da8efc3a3beefef
• https://git.kernel.org/stable/c/04bf69e3de435d793a203aacc4b774f8f9f2baeb
• https://git.kernel.org/stable/c/59e656d0d4a84ea0ee9a39c6f69160a3effccc94
• https://git.kernel.org/stable/c/878ecb0897f4737a4c9401f3523fd49589025671
• https://git.kernel.org/stable/c/91dd8aab9c9f193210681b86b6b92840ffe74f0c

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