CVE Catalog

CVE-2026-79954

HighCVSS 8.7
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.32%

26th percentile - higher than 26% of all known CVEs

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, without verifying that the selected SA is authorized for the frame's GVCID.

Risk Assessment

The vulnerability may allow an attacker to exploit an unauthorized Security Association, potentially leading to weakened security and possible interception or modification of telemetry data.

Recommendation

Upgrade CryptoLib to a version that verifies SA authorization against GVCID, and implement additional frame integrity checks.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS