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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/wolfSSL/wolfssl/pull/10536	Issue Tracking Patch
https://www.wolfssl.com/docs/security-vulnerabilities/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

History

26 Jun 2026, 16:53

Type	Values Removed	Values Added
First Time		Wolfssl wolfssl Wolfssl
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
References	~~() https://github.com/wolfSSL/wolfssl/pull/10536 -~~	() https://github.com/wolfSSL/wolfssl/pull/10536 - Issue Tracking, Patch
References	~~() https://www.wolfssl.com/docs/security-vulnerabilities/ -~~	() https://www.wolfssl.com/docs/security-vulnerabilities/ - Vendor Advisory
CPE		cpe:2.3:a:wolfssl:wolfssl::::::::

25 Jun 2026, 20:22

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 20:17

Updated : 2026-06-26 16:53

NVD link : CVE-2026-10512

Mitre link : CVE-2026-10512

CVE.ORG link : CVE-2026-10512

JSON object : View

Products Affected

wolfssl

wolfssl

CWE

CWE-682

Incorrect Calculation

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