CVE-2026-10512: X25519 x86_64 assembly final reduction leaves non-canonical field element
Vendor fix available · Affected: wolfSSL · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 39% of scored CVEs
DescriptionCVE.org
The X25519 x86_64 assembly implementation fails to clear the most significant bit during the final modular reduction, so the computed result may not be fully reduced modulo the field prime 2^255 - 19. This can leave the field element in a non-canonical form, producing an incorrect result from the scalar multiplication and potentially a wrong shared secret. The final carry-propagation chains in the x64 and AVX2 reduction routines could overflow into the top bit, and the high limb was not masked afterward, so the 255-bit field element was left non-canonical.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- wolfSSL · wolfSSLfrom 5.6.4 up to and including 5.9.1
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-10512 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.