CVE-2025-59534Public exploit

Command execution via unsanitized Kerberos login inputs

Published Sep 23, 2025 · Updated Sep 23, 2025

OS command injection in NASA CryptoLib before 1.4.2 allows local users to execute commands through crafted Kerberos CAM configuration values. The initialize_kerberos_keytab_file_login() function interpolates the CAM keytab path and username into a kinit command and passes it to system() without validation. Exploitation requires access to supply those values and trigger Kerberos keytab login; injected commands inherit the library process's permissions.

CVSS severity7.3
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in NASA CryptoLib before 1.4.2 allows local users to execute commands through crafted Kerberos CAM configuration values. The initialize_kerberos_keytab_file_login() function interpolates the CAM keytab path and username into a kinit command and passes it to system() without validation. Exploitation requires access to supply those values and trigger Kerberos keytab login; injected commands inherit the library process's permissions.

The record

CVE
CVE-2025-59534
Published
Sep 23, 2025
Updated
Sep 23, 2025
Vendor
NASA
Product
CryptoLib
Classifications
CWE-78, T1059.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.4.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

NASA · CryptoLibversion=< 1.4.2

Published CVSS scores

7.3GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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