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CVE-2025-39964 — Linux Kernel Race Condition Vulnerability →
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CVE-2025-39682 — Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability →
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September 20, 2026

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CVE-2026-79954NVD

Description

NASA CryptoLib 1.5.0 contains an authentication downgrade vulnerability in the Telecommand (TC) receive path. The receiver selects the Security Association used for SDLS processing solely from the SPI field inside the incoming frame, but it does not verify that the selected SA is authorized for the frame's GVCID.
Severity Level
HIGH (8.7)
Published Date
18/09/2026
Last Modified
18/09/2026
Exploitation Status
????
EPSS Score
0.32% (percentile 25.5%)

CVSS Base Metrics

CVSS v4 (4.0)
HIGH 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses (CWE)

CWE-306 - CWE-306 Missing Authentication for Critical Function

Affected & Patched Versions

ProductAffected VersionsPatched Version
NASA CryptoLib1.5.0N/A
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References