CVE-2026-79954

Summary

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.

Affected Software

Weaknesses

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

References

• https://fluidattacks.com/advisories/linkin
• https://github.com/nasa/CryptoLib

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