CVE-2026-10512
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 products
- Wolfssl, Wolfssl Jll
- Wolfssl
- < 5.9.2
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 0.5% (37th percentile)
- Weakness
- CWE-682
- NVD status
- Analyzed
- Published
- 2026-06-25
No indexed exploits for CVE-2026-10512 yet
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No exploit for CVE-2026-10512 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.