CVE-2026-106464
CVE-2026-106464
This page contains facts from public vulnerability sources. Check the original advisory before updating.
`_nx_secure_x509_parse_signature_data` computes the certificate signature's length as `tlv_length - 1` without first checking that `tlv_length` is non-zero. A certificate whose signature is an empty ASN.1 BIT STRING therefore parses successfully and leaves the certificate holding a signature length of `0xFFFFFFFF` and a signature pointer one byte past the end of the buffer. Certificates are parsed from the peer during the TLS handshake, so the input is remote and unauthenticated.
CVSS 8.7 · High · EPSS 0.2%
- Published
- Updated
Affected products and versions
netx duo
- Versions
- ≥ 0, ≤ 6.5.2.202603: Affected (custom)
- 6.5.2.202603a: Not affected
No fix published