CVE-2026-6330
mediumpriority · track · 36OT risk · elevatedEPSS 0.002 · 6 %ileexploit · PoCEUUSEPSS · scored 2026-10-27
The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard's required implicit rejection.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.9–6.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/wolfSSL/wolfssl/pull/10192cnnvd
- https://www.wolfssl.com/docs/security-vulnerabilities/cnnvd
- https://www.wolfssl.com/download/Patchcnnvd
- https://github.com/wolfSSL/wolfssl/pull/10192enisa_euvd
- https://www.wolfssl.com/docs/security-vulnerabilities/enisa_euvd
- https://github.com/wolfSSL/wolfssl/pull/10192Issue TrackingPatchnvd
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisorynvd
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