CVE-2026-102759

State
Published
Severity
6.3 Medium
Published
Sep 29, 2026
Updated
Sep 29, 2026
Reserved
Sep 29, 2026

Read the record on cve.org

Description

NetX Secure TLS accepts an empty application-data record without verifying its message authentication code. In `_nx_secure_verify_mac`, a decrypted application record whose length equals the negotiated MAC size is treated as valid and returns success after advancing the receive sequence number. The received MAC is never generated or compared.

Empty TLS application-data records are legal, and are commonly emitted by TLS 1.0 implementations as a BEAST mitigation.

Scores

CVSSScoreVectorSource
4.06.3 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:Neclipse

Weaknesses

  • CWE-354 Improper Validation of Integrity Check Value

Affected Products

ProductVersions
NetX DuoEclipse Foundation
  • 6.2.0 through 6.5.1.202602Affected
  • 6.5.2.202603Not affected

References

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