How severe is CVE-2025-59534?

CVE-2025-59534 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-59534 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59534?

CVE-2025-59534 affects Nasa Cryptolib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59534?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-59534 have an EU (EUVD) identifier?

Yes. CVE-2025-59534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30922.

When was CVE-2025-59534 published?

CVE-2025-59534 was published on 2025-09-23 and last updated on 2026-06-17.

CVE-2025-59534

CVE-2025-59534 is a high-severity vulnerability in Nasa Cryptolib with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30922
Weakness: CWE-78
Affected product: Nasa Cryptolib
Published: 2025-09-23
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-59534?: 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.
How severe is CVE-2025-59534?: CVE-2025-59534 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-59534 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59534?: CVE-2025-59534 affects Nasa Cryptolib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59534?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-59534 have an EU (EUVD) identifier?: Yes. CVE-2025-59534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30922.
When was CVE-2025-59534 published?: CVE-2025-59534 was published on 2025-09-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*

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