Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use get_unaligned_be32() and put_unaligned_be32() to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory access or even a crash on strict alignment architectures. This follows the implementation of timestamp parsing in the networking stack at tcp_parse_options() and synproxy_parse_options().
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/2b8e7aaa38002d8ee2f48d87b1f392eadd8e98c4
- https://git.kernel.org/stable/c/5c9c67cf7a3d16051dfb90e98836f530964dfb8e
- https://git.kernel.org/stable/c/992c20bc8a4aba220c8b95b467d049289778dad6
- https://git.kernel.org/stable/c/ea3d2caa5bfacf5db5c1cad521ca5d9144edd9a7
FAQ
What is CVE-2026-80637?
CVE-2026-80637 is a vulnerability with a CVSS score of 7.5 (HIGH). In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use get_unaligned_be32() and put_unaligned_be32() to safe...
How severe is CVE-2026-80637?
CVE-2026-80637 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-80637?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.