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CVE-2025-59534

Nasa Cryptolib command injection

7.3 HIGHPublic exploitEPSS 0.91%
  1. Published23 Sept 2025

Description

CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. Prior to version 1.4.2, there is a command Injection vulnerability in initialize_kerberos_keytab_file_login(). The vulnerability exists because the code directly interpolates user-controlled input into a shell command and executes it via system() without any sanitization or validation. This issue has been patched in version 1.4.2.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

Nasa Cryptolib< 1.4.2

Remediation

Fixed in
Nasa Cryptolib≥ 1.4.2

References

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Frequently asked

Is CVE-2025-59534 being actively exploited?

CVE-2025-59534 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.91%.

How severe is CVE-2025-59534?

CVE-2025-59534 has a CVSS 3.1 base score of 7.3, rated high. EPSS estimates a 0.91% probability of exploitation.

Which products are affected by CVE-2025-59534?

Affected products include Nasa Cryptolib.

How do I fix CVE-2025-59534?

Upgrade affected software to a fixed version, for example Nasa Cryptolib 1.4.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-59534 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.